How long do body cells live. How long do body cells live Lack of physical activity
The points are very simple, but CRITICAL important. I especially recommend starting to follow these rules from the age of 30. What is critical, highlighted bold red .
1: Give up alcohol
Give up alcohol, in general .. (or at least limit it to holidays). Among other things, alcohol reduces a man's ability to suppress estrogen, respectively, its amount increases, and testosterone decreases. Alcohol also removes zinc from the body, and this is the main building material for the testosterone molecule.
2: No smoking
Everything is obvious here, in my opinion.
3: Get enough sleep
To do this, try to go to bed most days of the week around 10 pm (in my opinion the most difficult thing to follow).
Reason: by 2 o'clock in the morning - the peak of production Melatonin, very important hormone to restore strength, immunity, etc. Melatonin also allows you to maintain a youthful appearance. helps cell renewal during sleep, and helps to cope with the stresses responsible for premature aging.
By the way, very often, it is lack of sleep that is responsible for a sharp drop in immunity. In the summer on "Adrenaline", when everyone is sausage until the morning, and as a result there is a lack of melatonin production (it is produced exclusively in complete darkness), because of this, many catch banal cold viruses by the end of the holiday, because. deplete their immune system.
When there is no other way out, and sleep falls on the time after 2 nights, you can try to take "Melatonin" in the form of a medicine 1-3 grams. It will support the immune system and allow you to recover faster overnight.
Melatonin can also help instead of sleeping pills when age-related sleep disorders appear (increases in the elderly: the quality of sleep worsens, it becomes difficult to fall asleep, feel fit during the day, do things with the same ease and normal return). Melatonin is one of the safest drugs of its kind. In fact, it is considered a dietary supplement. To prolong life, more than 3-6 mg of the drug per day is not recommended. You can start from the age of 25-30, but in courses of 1-3 months and a 2-month break. From the age of 40, it can be used as a replacement therapy, almost constantly (source at the link above).
When dosed correctly, Melatonin has an extremely beneficial effect on sleep. This hormone preserves the natural structure of sleep in all phases and restores it if it is disturbed. It speeds up falling asleep, expands the spectrum of cerebral waves when sleep is established. In phase 2, it slows down the heartbeat and lowers blood pressure, shortening the duration of phases 1 and 2 by a third, thereby approximating the rapid falling asleep characteristic of young people (on average 45% faster than in the elderly). Finally, melatonin normalizes the body's much-needed deep sleep and paradoxical sleep.
Melatonin increases the sensitivity of the hypothalamus, which leads to a shift in metabolism in the direction characteristic of a younger organism. In sufficient quantities, it is produced only up to 20 years, and then the production of this hormone decreases more and more, which steadily leads the body to aging. By the age of 60, the natural production of melatonin drops by 2 times compared to 20 years. Due to the light pollution of large cities (artificial lighting), the production of melatonin in a modern city dweller is very much inferior to a rural dweller.
Also, studies have shown that people who get enough sleep testosterone level higher than those who sleep little. Ideally, you should sleep 6-8 hours every night. Poor sleep can lower testosterone levels by 40%.
Also in a dream, the pituitary gland produces - the main volume Growth Hormone, which affects the growth of bones, muscles, skin and the regeneration of all body cells (in addition to sleep, the production of growth hormone is activated by physical activity). Therefore, it is very important to sleep the required amount of time and soundly enough. People who sleep little and poorly at 30 look like 50-year-olds.
Growth hormone also does two things that we need in terms of appearance and health: promotes the breakdown of fat and increases muscle mass. It is the lack of growth hormone that leads to age-related obesity with the accumulation of fat in the abdomen, loss muscle mass, slow healing of wounds, a decrease in stress resistance, sexual desire and potency, and a decrease in working capacity. Bones become brittle and brittle. Serious disorders occur in the cardiovascular system: a huge number of atherosclerotic plaques appear on the walls of blood vessels, the risk of developing heart attacks and strokes increases sharply.
Scientists have also established a link between growth hormone and the production of obesity hormone - Leptina. It is formed directly in fat cells, that is, the more fat, the more this hormone in the body. Leptin stimulates appetite and promotes further fat accumulation on a fat-to-fat basis. Vicious circle. And only our friend growth hormone is able to break it - it has been established that the higher the concentration of growth hormone in the blood, the less leptin it contains. This means that the appetite is reduced - another step towards beauty and harmony, associated with hormones and sleep.
What happens to hormones when our sleep and wake patterns are disrupted?
For melatonin and growth hormone to work, it is necessary for a person to be in a state of sleep - this has happened in the process of evolution. But here comes the dark time of the day, the concentration of daytime hormones in the blood decreases, the level of melatonin rises, and the growth hormone is preparing to be released into the blood. All processes are rebuilt to restore those resources that were spent during the day.
But what is? Contrary to internal rhythms, a person continues to be active. The adrenal glands are the first to be “surprised”: “What is it, we tuned in to sleep, and again you need adrenaline and others like it? Be careful, we need rest!" But nothing can be done, as they say, the master is the master. And the adrenal glands make an effort and release another portion of daytime hormones into the blood.
Here the pineal gland is “surprised” - after all, the signals clearly indicate the onset of night! What are the daytime hormones? Why, despite the concentration of melatonin in the blood, sleep did not come? Growth hormone also does not find conditions for its good deeds - how can you start recovery processes if the body is in the mode of energy consumption?
As a result, a situation develops that is characteristic of a lack of growth hormone: adipose tissue does not split, muscle tissue falls into decay. The level of “bad” fats, the culprits of atherosclerosis, rises in the blood.
Types of fatigue are clearly differentiated depending on the deficiency of certain hormones.
deficit thyroid hormones: fatigue occurs on awakening and during rest, the feeling of tiredness disappears during the morning as a result of activity. People with a deficiency of these hormones take longer naps and sleep less;
deficit androgens (testosterone in men): constant feeling of fatigue throughout the day, which increases dramatically during physical activity;
deficit hydrocortisone: severe fatigue in the evening with peaks at moments of stress during the day;
deficit growth hormone: great fatigue in the evening, as a result of which it is difficult to remain awake after midnight, it is difficult to recover the next day. Also, a lack of growth hormone is indicated by a long sleep that does not restore strength - they sleep longer, but less deeply and see fewer dreams;
deficit aldosterone: a feeling of fatigue occurs when a person is on his feet;
deficit vitamin B12, coenzyme A and trace elements (iron, magnesium): can also cause different types fatigue.
4: Do sports
Muscles loaded with a regular feasible load keep the whole body healthy and young - at any age, restore and increase the number of mitochondria in the cell, which provide all the internal energy processes in the body. Proper cardio exercises your lungs and heart. In addition, protein (and most of it in the muscles) best retains water in the body (in old age, dehydration is very noticeable - dry wrinkled skin), so pumped up muscle reserves help retain water in the body.
Even eight minutes of physical education or sports per day prolong life. On the move growth hormones are released, the production of which is especially reduced after 30 years. Also, exhausting work in the gym (basic exercises) contributes to testosterone production in huge quantities.
Separately, it is worth considering the issue of physical activity - as a prevention of aging.
How does exercise have a rejuvenating effect on the body?
The study showed that even at the age of 65, it is possible to stop and even reverse the aging process of muscle tissue by visiting the gym at least twice a week. When analyzing the composition of muscle tissue, it was found that the system of muscle tissue that controls energy supply becomes active, as in twenty-year-olds. In an experiment with 65-year-old people, it was proved that the energy "factories" of the muscle cell - mitochondria, the decrease in the activity of which scientists associate with the aging process, restored their work at the level that was observed in 25-30 year old people.
The results surprised scientists, since the decline in mitochondrial function is predetermined at the genetic level. No one could have imagined that exercise could change the activity of genes and even reverse age-related changes. Performing physical exercises, the energy stations of the cell - mitochondria - are activated. In addition, the genes responsible for their work are also activated. This leads to the fact that even decrepit old people become one and a half times stronger and younger.
Mitochondria are the powerhouses of cells. They are responsible for the synthesis of the main energy carrier in cells - ATP. In addition, the mitochondrion is the only organelle that has its own genome. In different cells of the body there is a different number of mitochondria, it all depends on the energy needs of this organ. With the accumulation of mutations in the genome of mitochondria and with a violation of their functions, the aging processes of the body are most often associated.
Systematic exercise restores the functions of the energy stations of the mitochondrial cells, this was determined by Canadian scientists from the Buck Institute for Aging in Ontario. It has long been known that it is the failure of mitochondria that is one of the main causes of aging. As soon as the work of mitochondria deteriorates, muscle mass is lost, muscle activity worsens. Through new research, it is possible to compare how active genes are in the muscles of young and old people. As previously suggested, mitochondrial function in the muscle cells of old people before training was low. But the most surprising was the fact that after the training, the activity of the genes was restored. This study proves that physical activity is necessary to restore the functioning of mitochondria, rejuvenate the entire body, and improve well-being.
A similar experiment with rats proved that this effect is not limited to affecting only the muscles and heart. It spreads to the liver, kidneys, gonads, skin, brain, and spleen. Mitochondrial aging has been slowed down through regular exercise. Considering that mitochondrial degeneration and loss of mtDNA integrity are involved in the development of age-related degenerative processes, mitochondria represent an attractive target for attempts to prevent or slow down the development of age-related pathologies and, possibly, even to change the rate of aging.
Despite the usefulness of regular workouts in the gym, it is better to give up heavy exhausting, overwhelming physical work, yes, yes, yes)))) instead, training in the gym is much more useful, in compliance with load standards, correct body positions when working with weights, reasonable alternation load and rest, etc. Unbearable physical work wears out the body faster ... This does not apply to work "for pleasure" in gardens, garden beds, "housework", etc.
5: Regularly visit the Russian steam room
Regular visits to the steam room are especially important for those who exercise little physically - to train blood vessels, the heart, etc. The steam room also activates the exchange of water, has a good effect on the skin, making it more elastic, young, saturating it with moisture, etc. Only the water balance must not be forgotten to restore: drink in a bathhouse mineral water, various infused with natural herbs - teas, not alcohol *.
By the way, the use of alcohol (or excess coffee) in a dangerous combination with a steam room or sauna can cause an imbalance in electrolyte metabolism (a sharp drop in potassium and magnesium), which can cause heart rhythm disturbances, up to a heart attack, etc. Therefore, just in case, it is better for such "lovers" to take a couple of tablets before such a "rest" with "Asparkam" - a cheap and harmless remedy that serves as a source of potassium (K +) and magnesium (Mg2 +) - as a preventive measure against loss of potassium and magnesium electrolytes.
For half an hour spent in a steam room or sauna, the body is able to get rid of several liters of sweat, and toxic substances come out with it.
By the way, the bath helps prevent atherosclerosis (narrowing of the arteries, as a result of which the patency of blood flow through the affected vessels is significantly worsened). This disease begins to progress slowly from the age of 30. To prevent the development of atherosclerosis, three basic rules must be observed:
1) vessels need train (movement, physical education, sports, steam room)
;
2) vessels need cherish (reasonable nutrition, quitting smoking and alcohol)
;
3) vessels need clean (bath, steam room)
.
6: Walk or run outdoors
In general, you should be more often outdoors away from the city center, where the air is poisoned by exhaust gases. Ideal - hiking, jogging, or some kind of qigong, or horizontal bars all year round etc. - in order to saturate the body with clean air and oxygen.
The energy in the human body is taken from the breath. In addition, it is necessary to ventilate the body after inhaling the vapors of various plastics and dyes (of which there are a lot in a modern home), which very negatively affect not only health, but also the production of the male hormone testosterone (see paragraph).
Polyethylene, plastics, cleaners and detergents, non-stick coatings make life easier, but their fumes and decay products damage human health. Naturally, it is difficult for the body to cope with such a volume of harmful substances on its own, so it needs help.
In addition, most of the toxins in the body are stored in adipose tissue and intercellular space, which is why getting rid of fat, you get rid of toxins. Therefore, motor loads in the fresh air, at the same time cleanse your body.
Baths and steam rooms help a lot with this (they remove the same rubbish through sweat). However, only movement contributes to better blood circulation and, accordingly, better “feeding” of the muscles with oxygen. In addition, in motion, metabolic processes improve, which contribute to a faster removal of old dead cells from the body, preventing the accumulation of so-called fatigue poisons. Thus, getting rid of toxins - you rejuvenate the body.
Old cells block capillaries and make it difficult for vital tissues to receive the necessary nutrients. In a one-year-old child, the percentage of such cells is no more than 1%, in ten-year-old children - 7%, in fifty-year-old people - up to 50%. With age, the ability to age only increases. In men, the turning point is considered to be the age of 48, after which they begin to age three times faster. For women, this age is 55 years. In order to push back old age as much as possible and stay young longer, it is necessary to ensure the constant removal of old cells from the body. Physical activity from an hour every day can help in this, and it is better in the fresh air.
7: Avoid too much sun exposure
The same applies to artificial tanning in solariums. It is known that prolonged exposure to direct sunlight ages the skin much faster. Not to mention the risk of skin cancer, which increases with every sunburn that causes redness and sunburn, even the slightest. It is absolutely impossible to burn in the sun! dmitriysh - once cited a tough post on this topic.
(To be continued)
In psychology, it is customary to divide a person's life into certain periods. In the most general form, our life will consist of the following parts: infancy (from birth to 2 years); earlier childhood (2 - 6 years); middle childhood (6 - 11 years); adolescence and youth (11 - 19 years); early adulthood (20 - 40 years); average adulthood (40 -60 years); late adulthood (60 - 75 years) and old age (from 75 years).
It is also customary to single out age crises. Usually, people are well aware of the crisis of 3 years (the child actively opposes himself to his parents and declares his desires), the teenage crisis, the crisis at 33 years (the age of Christ) and the crisis in retirement. In fact, different scientists pay attention to other ages when a person undergoes significant psychological changes.
But now I would like to dwell in more detail on the age of 30-35 years, this age is also commonly called the “age” of Christ.
What is a crisis? Age crisis is the transition of a person from one age group to another. Typically, such a transition is associated with certain experiences due to a person’s dissatisfaction with himself and his relationships with others (in adults) or with the acquisition of new qualities (in children). As a result of the age crisis, according to Erik Erickson, a person can acquire both positive and negative psychological qualities. It turns out that a crisis is a period when a certain amount psychological features a person passes into a new quality of his personality.
Now we will dwell in more detail on the characteristics of people in the period of early adulthood. Sigmund Freud believed that a person's well-being in adulthood is determined by his ability to love and work. success life path an adult is closely related to his family relationships and labor activity.
A young person entering adulthood faces the need to choose and solve many problems, among which the most important are the choice of a professional path, the creation of a family and the birth of children. It is these events that require the adoption of special decisions, due to which previously established views are supported, expanded or undermined and new motives of behavior are formed.
With age, the impulsiveness of human behavior begins to decline, and the awareness of external and internal circumstances- intensifies. With age, people begin to make more informed decisions and social maturation of the individual occurs.
Before the age of 30, a choice of one's own life strategy takes place. Young men and women plan their lives differently. Girls think more about marriage and career, while the main focus is on the future family. Usually, girls are more socially mature and, earlier than boys, are ready for family life with its limitations and responsibilities, the ability to correlate their desires with the needs of another person, with the need to build intimate relationships not only sexually, but also socially.
By establishing special intimate relationships, a person gets the opportunity to take care of someone, be responsible for someone, creates conditions for his own safety and security. At the same time, the motives for creating a family among young people are different. Some researchers identify 5 main motives for which men and women create families: love, spiritual intimacy, material calculation, psychological compliance, moral considerations. The most important for marriage are love and spiritual intimacy. It is the presence of love and spiritual intimacy in marriage that can make the union comfortable for both spouses.
If young people create a family only on the feeling of falling in love, without taking into account spiritual intimacy, then such a union will most likely be doomed and will not be able to exist for a long time. This can happen because no matter how much the spouses love each other, in their family they will be forced to fulfill their daily duties. If young people do not want or cannot, in some situations, give up their “I” in favor of “We”, then the young family runs the risk of breaking up without surviving the first years of family life.
According to many psychologists, the peak intensity of divorce falls on the age of 25 - 29 years. The study of the motives for divorce made it possible to identify several of the most common:
- incompatibility of characters;
- infidelity of spouses;
- poor relations with parents, interference of parents and other relatives in the affairs of a young family;
- drunkenness (alcoholism) of one of the spouses;
- frivolous marriage;
- imprisonment of one of the spouses.
Most often, young families break up, whose family life is less than 7 years, and the first peak of divorces falls on the first 1-1.5 family life. After marriage or since the beginning of cohabitation, young people acquire new responsibilities. Young people get to know each other's strengths and weaknesses better.
It is not always possible to make a forecast of their subsequent life together by looking at relationships in a couple before marriage. American researchers suggest considering the emotions that young people experience when they are together as a forecast for the duration of a relationship in a couple. For example, if young people feel good together, there is something to talk about and they spend the same free time, then we can talk about a good forecast of their relationship.
The transition through the turn of the 30th anniversary, to which men and women react differently, is marked by a revision of life goals, plans and values.
For men, this time is characterized by a change of work or a change in lifestyle. The most common motive for leaving work is dissatisfaction with something in this place. At the same time, job satisfaction is in the first place: the production environment, labor intensity, wages, etc.
Young women in their 30s also change their priorities. Women in more young age, focused on marriage and raising children, are now beginning to involve more professional goals. At the same time, those who used to be actively engaged in a career, as a rule, try to start a family and have children.
With age, romantic values (love, creativity) are replaced by more practical ones (family, health, material well-being). Self-confidence and awareness of one's own competence, on the one hand, and recognition of limitations and the establishment of an adequate level of claims based on life experience, on the other hand, provide a person with a sense of integrity and satisfaction. People stop believing in miracles and their actions in all spheres of life are motivated as follows: "My success is directly related to how much effort I am willing to spend on it."
Once again, I would like to note that human behavior during this period is associated with professional growth, one's own family, the birth and upbringing of children. Spending free time and hobbies allow you to realize the full potential of the individual. Passing a person through the turn of the 30th anniversary allows you to change your life in order to have clear goals and priorities in the future. This is the age of the heyday of the individual, the time when the adjustment of life goals allows the most daring ideas to be realized.
Loving yourself and feeling comfortable in your body is especially important at 30, as decisions at this age have many consequences. But you can truly love yourself only when you start to love your surroundings both in your personal life and at work. In addition, when you accept yourself as you are, there is a feeling of incredible freedom.
Start each day by welcoming and appreciating yourself, saying that you are smart, beautiful, talented and give your best. Be proud and confident in your choice, your likes and dislikes, hopes and dreams. And stop surrounding yourself with people who don't make you better. Spend time with loved ones and people who make you feel better. This will teach you to control emotions and increase self-esteem.
2. Take care of your personal life
Happiness, success, joy largely depend on how your personal life develops. So if you want to get married, have kids, or buy a house, 30 is the right time to reach those goals. Ask yourself what you can do in a year from now to build the love life you want. And don't hesitate. Save family life or children is imprudent. If you want kids, have them now before it's too late.
Blogger Mark Manson had the right idea about this:
You do not have time. You have no money. First you need to build a career. They are the end of your measured life ... Oh, shut up already. Children are great. They make you better. They make you happier. Don't put them off until later.
Mark Manson
3. Do a job you really enjoy
Thirty years is also a great time to explore other areas, change occupations and improve in your real passion, whether it be music, writing or business. There is nothing worse than putting down roots on, forcing yourself to live such a life and not being able to follow true passion. This situation can be described by the economic term “sunk cost”, when you have to keep investing in something because you have already invested too much in it. It is the cause of many failed careers, failed businesses and many unhappy lives.
Find a job that you really love, where your desires match your skills, where you will get the most return.
Once said:
Your work will fill most of your life, and the only way to be completely satisfied is to do what you think is great work. And the only way to do great things is to love what you do.
Steve Jobs
4. Stop comparing yourself to others
Stop comparing yourself to others. We are all different and we all move at different speeds. This is important, because after the turn of 30 it is easy to get depressed and turn off the right path to happiness. Everyone knows that if you compare yourself to others, you can earn stress, and all your self-confidence will fly into the pipe.
Love yourself and keep taking care of yourself. Allow yourself to go your own way in life. “If you live differently than your family and friends, without comparing yourself to them,” says Kay Mahesh, “don’t be hard on yourself.”
5. Be happy with what you have
Instead of being angry and envious of others, be calm, benevolent, and content with what you have. Research shows that when you appreciate what you have, a feeling of happiness appears and negative emotions go away. Of course, we need to strive for the best, but it is important to understand that life does not always develop in accordance with our plans. This knowledge will protect against negative effects arising from unjustified expectations. Be grateful for everything you have, even if you don't have much.
6. Forgive yourself for mistakes
Chances are you did a lot of stupid things in your 20s and teenage years. Everyone is wrong. But now you're 30, and it's time to reflect and forgive yourself for all these mistakes. People who engage in introspection see their weaknesses and try to avoid similar mistakes in the future.
Learn from your mistakes, forgive them and move on. Don't dwell on the mistakes of the past.
Psychologists say that the ability to forgive yourself and learn from your mistakes is a key factor in achieving success in anything.
7. Start exercising regularly
Find time to exercise. Thank you in the future. After 35 years, the loss of muscle mass begins, and due to a slowdown in metabolism, a few extra pounds will appear. That's why it's especially important to start exercising early.
As much as possible. It doesn’t matter what exactly you do: hiking, jogging, hiking, swimming or weightlifting. The main thing is to practice. Choose exactly the type of physical activity that you really like: there is less chance that you will quit halfway through.
8. Call your parents more often
Most 30-year-olds spend all their time doing family affairs, their own careers, and in this cycle they forget to maintain relationships with their parents.
Remember that your parents also get older and that they don't last forever. If you do not show enough care for them, then such an opportunity may not be, and you will repent.
Call your parents regularly. Just to find out how things are and let them know that you're okay. This will support their mental and emotional well-being, making your relationship warmer and stronger. Visit them at every opportunity.
9. Proper nutrition comes first
Another thing to add to this list is to get into the habit of eating right. If you do not start eating at 30, then in 40 and later, health problems will appear that could have been avoided.
Eat a balanced diet, reduce your intake of carbohydrates and fats, add more vegetables and fruits to your diet. Avoid convenience foods and fast food. Quit smoking and excessive alcohol consumption. And, of course, no drugs. Health should be in the first place, because this is your main wealth.
10. Keep enjoying life
Don't stop having fun just because you're over 20. If you spend your 30s chasing money, you'll end up as a surly, cynical, unhappy person.
All people who have left their 30th birthday far behind unanimously declare: no money is worth it if you do not enjoy life.
So enjoy life and have fun while you can. Go on dates, play with your kids (if you have any), friends and see the world. You only live once. So why not live this life the way you want? Enjoy this age, accumulate wonderful memories and do not forget about your goals.
A couple of years ago, you could eat whatever your heart desires at any time of the day and this did not affect the figure. You could not sleep for half the night, and wake up cheerful and rested in the morning. However, after 30 years, the situation is steadily changing. What to pay attention to stay beautiful and healthy?
1. Sleepless nights
Sleep is an important part of our life. During a night's rest, body temperature drops, heart rate drops, and brain activity changes. And all this in order for the body to be able to recover.
It should be remembered that sleepless nights increase the risk of developing heart disease. Sleep deprivation irreversibly damages brain cells. However, the very first effects can be easily felt after one night. Morning fatigue, poor concentration during the day, nausea, dizziness. The fact that you have not slept is also indicated by your face. Blood circulation worsens, the skin becomes gray, bags appear under the eyes. And the older we are, the more acutely it is felt. To recover, the body after 30 years needs at least three full-fledged dreams.
2. Lack of physical activity
After thirty, the metabolism slows down. The production of progesterone, a hormone responsible, in particular, for metabolism, decreases.
Imagine that your body is a machine, eh. It is enough to adjust three aspects of life to adjust the engine speed. These are food, exercise and sleep.
In addition to metabolism, there is another reason why exercise is important after 30 years. Over the years, muscle fibers begin to disappear. This means that the muscles become less flexible and stronger. But muscles help burn calories. The weaker they are, the slower the body copes with metabolism. Without regular physical activity after thirty it is difficult to stay slim.
3. Bad diet
Remember the two golden rules. First - have breakfast, second - during the day, eat often, but in small portions, every three to four hours. If you skip breakfast and go to work on an empty stomach, you are confusing your brain. From the stomach comes information about the lack of "fuel" and the body begins to store fat.
Remember to avoid simple carbohydrates and sugars. There comes a time when even a minimal excess of calories instantly turns into fat.
A poor diet not only affects excess weight. Lack of important nutrients in the diet can lead to hair loss and skin damage. To prevent this, eat vegetables and fruits daily, and fish twice a week.
4. You don't use creams
After 30 years, the production of elastin and collagen decreases, so the skin loses its elasticity. It becomes thinner and less elastic, so in some places cellulite is more visible. Do not forget about the appearance of the first mimic wrinkles.
The bare minimum is a good eye cream, a day and night face cream, and a firming body cream. Of course, they should be used regularly.
What cosmetics to choose? With vitamin C and E, with retinol and coenzyme Q10. Vitamin C brightens the skin and gives it shine, E protects against free radicals, retinol, i.e. one of the forms of vitamin A, stimulates cells to regenerate, improves elasticity and reduces wrinkles. Coenzyme Q10 affects the smoothness and elasticity of the skin. Moisturize your skin from within. Drink more water. Avoid too a large number coffee and alcohol. 
5. Alcohol abuse
If there is a lot of alcohol in your life, know that it damages the liver and pancreas, flushes out minerals and vitamins. The older we are, the more difficult it is for the body to cope with the metabolism of alcohol.
We lose hair every day, but we usually don't go bald; we cut our nails, but they still grow back. We remove dead skin cells to give it smoothness and radiance, we carry out procedures that start the process of skin regeneration.
All this is possible thanks to the body's ability to renew itself. You must have heard that the human body is completely renewed every 7 years, that is, at the end of this period you become a different person, because every cell in your body is replaced by a new one.
Sounds amazing! But is this really so and why do we, despite the renewal of the body, continue to age?
Body renewal: each cell has its own “service life”
Indeed, the lifetime of individual cells of the human body is limited. After the expiration this period Cells die and new ones take their place. The adult human body consists of a huge number of cells - approximately 50-75 trillion - and each type of cell has its own "lifetime".
After the death of a person, not all cells die immediately - some of them take several minutes for this, others - hours, and others - a day. The rate of cell death is one of the factors that is used to determine the cause and time of a person's death.
The rate of cell death is one of the factors that is used to determine the cause and time of a person's death.
Below site will consider:
- the approximate time of renewal of various cells, tissues and organs of the body;
- why do we get old.
How fast is cell renewal?
Below are the approximate rates of cell renewal in the human body:
1. Red blood cells (erythrocytes), which carry oxygen, live for about four months.
2. The average lifespan of white blood cells is slightly more than a year. At the same time, the most numerous group of leukocytes - neutrophils - live only a couple of hours, eosinophils - 2-5 days.
3. Platelets live for about 10 days.
4. Lymphocytes are updated at a rate of 10,000 cells per second.
5. Epidermal cells are updated approximately every 10-30 days of the week, the skin recovers 4 times faster after minor injuries.
6. The "age" of hair on the head can reach 6 - 7 years. Every day, the hair on the head grows by about 0.5 mm. Hair on other parts of the body - about 0.27 mm per day. Eyebrows are renewed every 64 days.
7. The surface of the cornea of the eye is covered with a thin layer of cells that are constantly updated in 7-10 days. Retinal cells do not renew themselves, as does the lens of the eye, so age-related visual impairment is a common problem. However, experts are developing methods of retinal regeneration using stem cells.
8. The epithelial cells of the small intestine are renewed every 2-4 days, the colon - approximately every 4 days, the gastric mucosa - about 5 days.
9. Cells in the cerebral cortex, as far as we know today, are not capable of regeneration, unlike hippocampal neurons. Damaged nerve cells can recover to a certain extent if the body of the neuron is not damaged.
10. The rate of nerve regeneration after injury is approximately 2-3 mm per day.
11. Average age fat cells - 8 years. Every year, 10% of fat cells are replaced by new ones.
12. Renewal of liver cells takes approximately 300-500 days. The human liver has an excellent ability to regenerate. If you remove 70% of this organ, it will recover to normal size in just a couple of months. Surgeons removed even 90% of the liver, but the recovery in this case was incomplete.
13. Kidney and spleen cells need 300-500 days to renew.
14. Nails grow about 3.5 mm monthly, although the pinky nail grows slower than the others. Toenails grow at a rate of about 1.6 mm per month, with the thumbnail growing the fastest.
15. The heart is one of the slowest regenerating organs. human body. In a 25-year-old person, only 1 percent of heart cells are renewed annually, this figure decreases with age. Less than half of the heart cells are renewed in a lifetime.
The heart is one of the slowest regenerating organs in the human body.
16. Taste buds on the tongue are updated every 10 days.
17. Fingertips can partially regenerate after injuries. The best results are observed in children a few months after the injury. An unaffected nail bed is needed to restore the fingertips. The new fingertip is sensitive and has an imprint on it.
18. The mucous membrane of the bronchioles is renewed every 2-10 days.
19. Microscopic air sacs - alveoli - are updated in 11-12 months, and superficial lung cells - in 2-3 weeks.
20. Muscle cells are "long-livers" because their lifespan is 15 years.
21. The cells of the skeleton are constantly updated, but rather slowly - 10% per year, and it takes about 10 years to completely replace the cells of the skeleton.
Why, despite the renewal of the body, we age
The fact of renewal of the body was established in the early 50s in the course of observing the movements of objects with radioactive atoms embedded in them. Jonas Friesen, molecular biologist from Sweden, studied the renewal of the body by measuring the level of radioactive carbon-14.
He found that every 7-10 years most of the body's cells are replaced by new ones. Of course, this figure is conditional, taking into account the rate of renewal, for example, of heart and skeletal cells or the lack of the ability to regenerate certain neurons, retinal cells, lens, and oocytes.
However, with age, the body's ability to regenerate decreases, and effective method prevention of aging and death has not yet been found.
Geneticists believe that the cause of aging is hidden in cellular DNA, or rather, in its terminal sections - telomeres. There are several theories of aging, as well as a number of factors that influence this process.
Scientists continue to study the features of body renewal, the causes of aging and methods to prevent this process. the site hopes that one day they will be able to give the world a revolutionary discovery, thanks to which the immortality of man will become a reality.