Why don't people in tropical regions live longer than those in cold regions?
The internal factors that can affect life span are as follows.
Why does the brain age?
For people over 60 years old, a large amount of lipofuscin is accumulated in brain cells, and the brain will age. Injection of vitamin E can reduce lipofuscin in brain cells and delay aging.
Heart rate is closely related to life span.
A scholar believes that 800 million heartbeats are the limit of animal life. Fast heart rate leads to short life span, while slow heart rate leads to long life span. When the turtle's heart rate is the slowest, it is less than 10 times per minute, and its life span can reach 500 years. The cat's heartbeat is as high as one minute.
240 times, life is only a few years. Lowering the heart rate through exercise is an important way to prolong life. Healthy people walking 4 kilometers a day, 1 hour, can stimulate the vagus nerve, thus slowing down the heart rate.
But if the heart rate is too slow, people will die.
People with high levels of hypnotic peptides with dreams in their brains live longer.
Researchers at Yamanashi University found that there are two kinds of hypnotic peptides in the human brain, one is dreamless sleep and the other is dreamless sleep. They successfully isolated the dream sleep-inducing peptide and applied it to animals to prolong the dream period of their sleep. Therefore, the average life span of experimental animals is greatly improved. The content of hypnotic peptides with dreams in the brains of many dreamers is higher than that without dreams, which can prolong life.
Death hormones affect people's life span.
Some foreign scholars believe that biological death may be related to the "death hormone" secreted by it. The female octopus fasted from the sixth day of ovulation and hatched eggs wholeheartedly. More than 40 days later, when the little octopus hatched,
After that, the female octopus died soon. This is because there are a pair of glands behind the eye socket of octopus, at this time, a chemical substance will be secreted, which will promote the death of organisms, so it is called "death hormone". The human pituitary gland will also release "death shock"
Element ",it will inhibit the thyroid gland from secreting thyroxine. Once people lack thyroxine, they will feel weak, don't want to eat, and will soon die. If we can delay the secretion of "death hormone", we can prolong our life.
Shou.
Old people with high cholesterol live longer.
In recent years, some scholars have suggested that the elderly with high cholesterol live longer on the grounds that adrenocortical hormone, which is very important for maintaining human physiological function, cannot be separated from cholesterol; Cholesterol can maintain the function of phagocytes in the human body and devour bacteria and cancer cells in the human body. According to the survey, the incidence of lung cancer, liver cancer, colon cancer and pancreatic cancer in people with low cholesterol is 3-4 times higher.
There is a telomere at the top of chromosome, which affects cell life.
There is a telomere at the top of the chromosome in human nucleus. Every time a cell divides, the telomere is shortened, and the cell divides at most 100 times. When telomeres can no longer be shortened, cells can't divide and begin to die. Telomeres are recognized.
As a "life clock", in 1984, scientists discovered a kind of telomerase, which can maintain the telomere length of cancer cells and make them proliferate indefinitely, but it has no effect on most cells.
Genes on chromosomes control life span.
Dr. Helfand, an American medical scientist, discovered the "longevity" gene of Drosophila, which can make Drosophila cells "go on a diet" and control their energy absorption. This longevity gene is distributed on two chromosomes of Drosophila melanogaster. If we only change the gene on one chromosome, the life span of fruit flies can be doubled. If the genes on two chromosomes change at the same time, fruit flies will starve to death because of excessive "dieting".
Life span is also related to genetic structure.
Professor Walter Longo, a biomedical scientist at the University of Southern California, found that changing the gene structure and removing two genes, SIR2 and SCH9, can prolong the life of yeast by six times. After removing these two genes, the life span of mice was significantly prolonged; But no human experiments have been conducted.
Longevity is related to mitochondria.
Mitochondria is a kind of organelle in cytoplasm, which provides energy for cells and regulates the concentration of calcium ions in cells. The 10398 base on mitochondrial DNA varies from person to person, some people contain guanine (G type) and some people contain adenine (A type). People with guanine (G type) generally live longer.
Life is measured by the shape of the human body.
People with thick waists have short lives, while those with thin waists have long lives. A long-lived old man has no waist. Height affects life span. Tall people live short, short people live long. Every increase of10cm shortens the average life span by 8 years. The best height for men should be 1.67m (some people say 1.7 1m), and for women it should be 1.58m (some people say 1.57m). People who don't lose much weight when they are old.
Life expectancy is related to birth order.
The higher the parity, the more obvious the advantage of longevity.
External factors affecting people's life span.
People who exercise regularly live longer.
Animals with short lives, such as mice, have fast heartbeats, while animals with long lives, such as elephants and horses, have much slower heartbeats. Because the heartbeat is slow and powerful, the heart has a long rest time. Physical exercise can make the heartbeat slow and strong, and make people live longer.
Don't exercise in the morning, because people's adrenaline is four times higher in the morning than at night, so people with heart disease are prone to problems when exercising at this time; We should exercise in the evening and 45 minutes after meals. It is enough for the old man to walk for 20 minutes.
Swallowing saliva can prolong life.
Ancient bodybuilders in China believed that swallowing body fluids could prolong life. First, put your tongue on the palate and wait until the body fluid is full before swallowing. Then inhale through the nose and send the body fluid to the lower abdomen (Dantian point under the umbilicus) with the idea of guiding qi, which is called one inhalation. Then the anus becomes lighter.
Contraction, such as forbearance, makes the qi rise to the umbilicus a little bit with the lifting force of the anus, then turn to the kidney area, rise to the back of the head along the spine and exhale, which is called a breath. This repetition can achieve what the ancients said: "Qi and qi return to the navel,
Harmony between life and heaven. "
Saliva regimen has a long history. Get up and sit up every morning, concentrate on breathing, lick your tongue and palate, and then swallow it slowly until your mouth is full of body fluids. You can also send it to your sublingual abdomen with your mind. You can also swallow it twice a day in the morning and evening when the body fluid is full. Swallowing body fluids can prolong life.
Keeping your head cold and your feet warm can prolong your life.
Herman Joerhaff, a famous Dutch physicist and chemist, died in 1723. Before he died, he wrote a book with a page of 100. On the cover, it said, "The only profound secret lies in medical skill." Later, it was bought by a wealthy businessman for 20 thousand yuan in gold coins. However, 99 pages of this book are blank, leaving only the handwriting of scientists on page 1:
People who study hard live long.
Exercise mental memory, study and write books, and moderate thinking will delay the aging of brain cells; The higher the education level, the longer the life expectancy, and the longer the life expectancy of people who are diligent in reading.
People who live in an active way live longer.
People who adopt an active lifestyle, are enterprising and have ideals can delay aging; For example, during the war, people are not easy to get sick. After retirement, some people do nothing and get old easily.
A helpful, harmonious and friendly person lives longer; The death rate of malicious, selfish and disagreeable people is 1.5-2 times that of normal people.
Some foods can help people live longer.
Eating wolfberry regularly can prolong life.
Lycium barbarum in Ningxia is the most famous. The betaine contained in Lycium barbarum can inhibit the deposition of fat in the liver and prevent cirrhosis. Lycium barbarum also has certain effect on lowering blood pressure and blood sugar. It is advisable to take a small amount of Lycium barbarum for a long time, but not too much. Lycium barbarum can tonify kidney, replenish essence, nourish liver, improve eyesight, strengthen body and prevent premature aging. The vitamin content of Lycium barbarum is 40 times that of apple and 28 times that of pear.
Sheng Huifang, Taiping in the Song Dynasty, wrote: Someone sent messengers to Hexi and met a young woman of fifteen or sixteen who was chasing an old man of eighty or ninety. Poor old man. When the messenger saw this scene, he stopped the woman and asked:
"Who are you always?" The woman replied, "It's my great-grandson." The messenger asked, "Why did you hit him?" The woman said angrily, "There is good medicine at home, but he refuses to take it. He is so old that he has to fight." The messenger was surprised.
Q: "How old are you today?" The woman replied, "372 years old!" The messenger was frightened and asked, "What medicine do you take?" The woman replied: "Eat Lycium barbarum leaves in spring, Lycium barbarum flowers in summer, Lycium barbarum fruits in autumn and Lycium barbarum roots in winter. Eating medlar in four seasons can make people and the world. "
Qi Shou. "
Sesame is also a kind of longevity food.
Eating sesame seeds can eliminate the precipitation on the arterial wall and remove senile plaques.
Eating ginger can prolong life.
Free radicals in the human body are an aging factor, which will produce "rust spots" when acting on the skin, thus leading to premature aging. Eating ginger can eliminate free radicals, which is much stronger than vitamin E's anti-aging ability. When Su Shi was an official in Hangzhou,
I heard that the abbot of Jingci Temple was still in his eighties, so I went to visit him. The elder said to himself, "I have eaten ginger for forty years, so I am not old." However, ginger is good for my eyes. People with inflamed eyes should use it with caution. )
Eating sweet potatoes can prolong life.
According to the survey, the staple food of more than 40 centenarians in Yimeng Mountain area of Shandong Province is sweet potato.
Vegetarian food can live a long life.
Bama people are mainly vegetarian and live a long life.
Lard is longevity food.
Some people think that properly cooked lard is a kind of longevity food. When pork is cooked with slow fire 1 ~ 2 hours, the saturated fatty acids are reduced by 30%~50%, and the unsaturated fatty acids are doubled.
The quality of drinking water affects people's life span.
In Yamanashi Prefecture, Japan, there is a "longevity village" where many centenarians were born. Researchers have discovered the mystery of drinking water "Changshou Village": all villagers in this village get drinking water from a small stream in the village, and the water in this stream is weakly alkaline. ...
Food that is not conducive to longevity.
Eating more sweets will lead to premature aging. Eat less monosodium glutamate, instant noodles, spinach, pork liver, pickles, fried dough sticks and so on.
Dieting can prolong life.
The idea that dieting can prolong life has been recognized by more and more people. At a symposium on the influence of diet nutrition on longevity in the United States, experts put forward the view that "limiting diet helps longevity" Experts from the Longevity Research Association of the former Soviet Union conducted a survey of thousands of long-lived elderly people, and found that all the birthday girls have one thing in common, that is, they eat less and eat only half full at every meal.
Avoid the valley and live long.
Taoism has a method called "avoiding valley". As the saying goes, "if you want to live a long life, your intestines must be clear." Food and food residues in your intestines are easy to be poisoned, leading to many diseases and even cancer. Hunger means not eating for a day or two and drinking boiled water to achieve the purpose of prolonging life.
Some poisons can stimulate people to live longer.
In recent years, some scholars have suggested that the stimulation of toxic stress can make animals reach their potential maximum life. LCOKEY calls it "toxic stress effect", which means something toxic or irritating.
Quality, organisms in the appropriate dose or mild stimulation, no toxicity, but can prolong the life of organisms. Researchers in the former Soviet Union fed mice a low-toxic drug with a structure similar to that of vitamin B6, which prolonged their life span by 10 months and increased their average life span by 50% compared with the control group.
People living in cold areas live a long life.
According to the survey, the average life expectancy of people living in the cold zone is longer than that of people living in the tropics 10 to 30 years old, and the centenarians per100000 population are ten to dozens times that of the latter.
Lowering body temperature can prolong life.
Scientists in the United States, Japan and Russia believe that lowering people's body temperature can prolong life. Why does hypothermia lead to longevity? This is because people's basal metabolic rate will decrease correspondingly at low body temperature, and it can be reduced by half when the body temperature drops to 300C C. In the study of longevity, there is a theory of "living energy consumption", that is, everyone has his own specific living energy, and once this energy is released, he will die. Experts believe that if the body temperature can be lowered by 2-3.50℃, people's life span can be extended to 6540 years.
Excessive calcium supplementation is easy to age.
A doctor in Canada once injected a chemical drug into mice to precipitate calcium in their connective tissue and blood. Results The mice suffered from arteriosclerosis, camel back, great weight loss, blindfolded eyes, and teeth and hair loss.
It shows the phenomenon of aging. Later, doctors used iron polyglucose to separate excess calcium from mice. Mice are rejuvenated. This example shows that the deposition of calcium salt can cause the aging of animals. We humans supplement calcium.
Treatment should be moderate. If you supplement too much calcium, it will accelerate people's aging.
The more sleep, the shorter life expectancy.
The mortality rate of the elderly who sleep for more than 10 hours a day for a long time is higher than that of the elderly who sleep for 7-8 hours a day.
Early to bed and early to rise can prolong life.