Factors affecting the aging speed of human body
Living and working habits
Although medical research has found that women's skin will start aging between the ages of 25 and 27, not all women do. This is inseparable from the habits of personal life and work. If people know how to maintain, even if they are 30 or 40 years old, they may look no different from people aged 18. Therefore, if you want to prevent aging, you'd better develop good habits of work and rest and be a delicate girl.
Environmental water and soil problems
External factors can also cause skin problems. If you live in a different place, such as southerners going to the north, it will definitely affect your skin. Because first of all, the air humidity in the north and the south is different. The air and humidity in the southern environment can slow down the aging speed, because it can help you keep your face moist.
Reasons for personal eating habits
For women, usually eat more fruits and vegetables, which is more conducive to qi and beauty. People who regularly eat these foods will gradually get old and take better care of their bodies. But if she likes to eat some heavy food, her skin will be in a worrying state if it is not remedied the day after tomorrow.
Personal psychological and emotional problems
If you have a good attitude, it can also be good for your skin? Auxiliary? Quite a lot. For people who are in a state of high tension for a long time, or who are very pessimistic and negative, her skin is prone to dullness and no good luster. Therefore, it is best to give yourself a good mood, don't have too much mental pressure, give yourself enough confidence, and smile more every day, which can also help you resist aging.
Timetable of human aging
1, brain: aging at the age of 20.
With the increase of age, the number of nerve cells (neurons) in the brain gradually decreases. When we were born, the number of nerve cells reached about 654.38+000 billion, but it decreased year by year from the age of 20. By the age of 40, the number of nerve cells began to decrease at the rate of 1000 per day, which affected memory, coordination and brain function. Experts say that although the role of nerve cells is crucial, in fact, the functional degradation of gaps between brain cells has the greatest impact on the human body.
2, voice: aging from the age of 65.
As we get older, our voices will become soft and hoarse. This is because the soft tissue of the larynx becomes weak, which affects the sound quality, loudness and quality. At this time, women's voices are getting hoarse and the sound quality is getting lower and lower, while men's voices are getting weaker and higher.
3, eyes: aging from the age of 40.
With the decline of vision, glasses have become the iconic feature of many middle-aged people over forty, which affects our ability to see objects at close range. Experts say that with the increase of age, the eye muscles become weaker and weaker, and the focusing ability of the eyes begins to decline.
4. Hair: Men's hair turns white after 30 years old, and women turn white from around 35 years old.
Men's hair begins to turn white after the age of 30, and women begin to turn white around the age of 35. After the age of 60, hair follicles become less and hair becomes thinner. Hair is black because it contains a kind of melanin. The human body has no glands that can secrete melanin evenly. Melanin is produced separately in each hair, so the hair always turns white one by one.
5, muscles: aging at the age of 30.
Muscles have been growing and failing; Grow again and then fail. After the age of 30, the speed of muscle failure is greater than the growth rate. After the age of 40, people's muscles began to decrease at a rate of 0.5% to 2% per year.
6, bones: 35 years old aging.
Before the age of 25, the bone density has been increasing, but by the age of 35, bone began to lose and entered a natural aging process. At the age of 80, the height will be reduced by 5 cm.
7, teeth: 40 years old aging.
The saliva secretion of adults over 40 will decrease. Saliva can wash away bacteria, reduce saliva and make teeth and gums more prone to decay. After the periodontal gingival tissue is lost, the gums will shrink.
8, breasts: aging from the age of 35.
When people reach the age of 35, breast tissue and fat begin to lose, so the size and fullness decrease. From the age of 40, women's breasts began to droop and the areola (the area around the nipple) contracted sharply. Although the incidence of breast cancer increases with age, it has nothing to do with the physical changes of the breast. Experts say that with the increase of age, human cells are more vulnerable to damage. Therefore, genes that control cell growth may mutate, leading to cancer.
9. Bladder: Aging from the age of 65.
At the age of 65, we are more likely to lose control of our bladder. At this point, the bladder will suddenly contract, even if the urine has not filled the bladder. Women are more likely to have bladder problems and enter menopause. The decrease of estrogen level makes urethral tissue thinner and weaker, and the supporting function of bladder decreases. When people reach middle age, the bladder capacity is generally only about half that of young people. If the bladder can hold two cups of urine at the age of 30, it can only hold one cup at the age of 70. This will lead to more frequent toilet use, especially the decrease of muscle flexibility, which will make the urine in the bladder unable to be completely emptied, which will lead to urinary tract infection.
10, intestine: aging from 55 years old.
A healthy intestine can balance harmful bacteria and beneficial bacteria well. Experts say that after we are over 55 years old, the number of friendly bacteria in the intestine begins to decrease greatly, especially in the large intestine. With the increase of age, the digestive juice flow of stomach, liver, pancreas and small intestine begins to decrease, and the probability of constipation will increase.
1 1, lung: aging from the age of 20.
Lung capacity began to decline slowly at the age of 20, and by the age of 40, some people were panting. Part of the reason is that the muscles that control breathing and chest become stiff, which makes it more difficult for the lungs to function. It also means that some air will stay in the lungs after exhaling-leading to breathlessness. At the age of 30, men inhale an average of 2 pints (about 946 ml) of air per breath, but by the age of 70, this figure has dropped to 1 pint (about 473 ml).
12, heart: aging from the age of 40.
With the aging of our body, the efficiency of the heart to deliver blood to the whole body begins to decrease, because blood vessels gradually lose their elasticity, and arteries may become hard or blocked. The reason for these changes is that fat accumulates in the coronary artery, and after taking too much saturated fat, the blood delivered to the heart decreases, causing angina pectoris. Men over 45 and women over 55 are more likely to suffer from heart disease. A new study by a British pharmaceutical company found that the average age of the British heart is five years older than their actual age, which may be related to their obesity and lack of exercise.
13, liver: aging at 70 years old.
The liver seems to be the only organ in the body that can challenge the aging process. Experts say:? Hepatocytes have a strong regenerative ability. ? He said that after a liver is surgically removed, it will grow into a complete liver within three months. If the donor does not drink or take drugs, or has not suffered from infectious diseases, then the liver of a 70-year-old man can also be transplanted to a 20-year-old man.
Anti-aging food for 40-year-old women
1, deep-sea fish
Eating deep-sea fish three times a week can effectively help keep your skin young and moist, and salmon is the most effective fish for beauty among all deep-sea fish. Salmon contains powerful antioxidants? Astaxanthin, the orange-red color of salmon comes from this. The antioxidant capacity of astaxanthin is 550 ~ 1000 times that of common vitamin e, which can effectively fight free radicals, delay skin aging and protect skin from ultraviolet rays. Experts suggest that people in China should eat more deep-sea fish, preferably three times a week, especially salmon, which is good for the health of people of all ages.
2. honey
For women, it is undoubtedly wise to choose bread and honey for breakfast. However, you'd better use dark honey and try not to use light honey. A study in the United States shows that black honey is the best guardian of human cells, because it is rich in anti-oxidation and cell protection substances, which is conducive to purifying blood and preventing cardiovascular and cerebrovascular diseases. Honey is the most ideal skin care product. It can provide nutrition for skin, make it elastic, kill or inhibit bacteria attached to skin surface, eliminate pigmentation of skin and promote epithelial tissue regeneration.
Step 3: carrots
Carrots are called? Skin food? , can moisturize the skin. Carrots are rich in vitamin A and carotene. Vitamin A can keep hair shiny and skin delicate. Carotene can scavenge free radicals that lead to aging. In addition, the signature nutrients such as B vitamins and vitamin C contained in carrots also have the effect of moisturizing and anti-aging. The aroma of carrots is caused by volatile oil. It can promote digestion and has bactericidal effect.
4. Cucumber
Delicious, crisp and fragrant, it is highly praised by slimming people. Old cucumber is rich in vitamin E, which can prolong life and resist aging. Cucumber enzyme in cucumber has strong biological activity, which can effectively promote the metabolism of the body. Have you ever tried to say hello under your nose after a sleepless night, but you were in a bad mood? At this time, cucumber will come in handy, and its natural antioxidant components will make your bags under your eyes obedient. Lie down, stick the sliced cucumber on your eyes, and wait for its magical power ~ Don't waste the rest, soak it in a glass of water and give you a hot spring-like feeling.
5.peanut butter
Maybe not everyone likes peanut butter, but because it is rich in vitamin E, its powerful antioxidant function can not be ignored. Regular consumption can help women resist the invasion of time. In addition, peanut butter is also called the best energy food. If an athlete can eat a piece of bread with 2 teaspoons of peanut butter two hours before a sports competition, what does it contain? Okay？ Monounsaturated fatty acids can help him keep full and provide the body with slowly released carbohydrates, so that it can maintain good physical strength and state.
6. Walnut
Walnut contains many anti-cancer and anti-aging components, such as vitamin E, linolenic acid, phytosterol, tea polyphenols, carotenoids and so on. Vitamin E contained in walnut kernel can protect cells from oxidative damage by free radicals, which is recognized as an anti-aging substance in the medical field, so walnuts have? Long live the son? 、? Longevity fruit? Known as. Therefore, eating a proper amount of walnuts every day can not only help women resist aging, but also help women prevent breast cancer.
7. Green tea
Green tea helps to delay aging, and tea polyphenols have strong antioxidant and physiological activity, which is a scavenger of free radicals in human body. Studies have proved that 1 mg tea polyphenols is equivalent to 9 micrograms of superoxide dismutase in scavenging excessive free radicals harmful to human body, which is much higher than other similar substances. Tea polyphenols can block lipid peroxidation and remove active enzymes. According to the test results of Tomoyo in Ota, Japan, it is confirmed that the anti-aging effect of tea polyphenols is 18 times stronger than that of vitamin E.
8, cherry
It has been a beauty fruit since ancient times. Cherry juice is the favorite among many whitening products, which can help facial skin to be fair and ruddy, eliminate wrinkles and remove spots. Cherry is not only rich in vitamin C, but also extremely rich in iron, which is 13 times that of hawthorn and 20 times that of apple. In addition to high iron content, it also contains vitamin A, which can balance cortical secretion, delay aging, and help activate cells and beautify skin.
9.mango
If you want to keep your skin moist and in the best condition in front of the scorching sun, you need to keep your skin healthy from the inside out. What is the sweet and delicious mango rich in? Carotene can effectively transform vitamins, and vitamin A can keep skin healthy and improve skin repair ability. If you don't have enough vitamin A, your skin will become drier, and vitamin A can also effectively reduce the discomfort after skin exposure. Mango feels soft. You can try adding some salt and lemon juice, or buy green mangoes and dip them in salt and pepper.
10, Apple
There is an American proverb called: an apple a day keeps the doctor away. Apples contain cellulose, vitamin C and sugar, which can prevent rashes and keep skin shiny. It is also a good helper to lose weight. Cornell university research found that apples are rich in antioxidants? Quercetin? The effect of protecting brain cells from free radical damage is even better than that of vitamin C. Quercetin mainly exists in apple peel, so eating with skin can absorb the most antioxidants. In addition, the study found that red apples usually contain more antioxidants than green apples.
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