We without exception will think, white hair and wrinkles are early signs of aging, in fact, human body some parts in appearance before we get old function began to degradation, here's some of the human body organs aging degradation schedule. Brain: 20 years old as we start getting older, brain nerve cells (neurons) number of reduced gradually. We were born the number of nerve cells to 100 billion or so, but from 20 began dropping year by year. To 40 years old, the number of nerve cells start to a decline of 10000 per day, and on the memory, coordination and brain function the influence. British imperial college London healthcare trust agencies health care consultant, neuroscientists Milwaukee, Wisconsin, g-pull g Bates says that, despite an important role of the nerve cells, but the fact of the gap between the brain cells to human body function degradation caused the biggest impact. Bowel: from 55 years old healthy bowel can start in harmful and beneficial bacteria play a good balance between the role.MLB Cap Buzz and the London school of medicine immunology professor Tom-MacDonald said, the number of bacteria in the intestines friendly as we enter the 55 years old to sharply reduce, the scene especially in large intestine in town. The results of the digestive function drops, intestinal disease risk increases. As we age increases, stomach, liver, pancreas, small intestinal digestion flow began to drop, the occurrence of constipation chance will increase. Breast: from 35 years old people to start 35 years old, the breast tissue and start to lose fat, size and fullness and drop. From 40 years on, women began to breast prolapse, the areola (nipple surrounding area) sharp contraction. Although with age, the incidence of breast cancer increases, but with breast physical change no relation to the results. Manchester st Mary hospital breast cancer experts gareth Evans said, the human body cell increases with the age of the damaged more likely, in this way, controlling the growth of cells may occur the gene mutation and cause cancer. Bladder: from 65-year-old began to aging age 65, we are more likely to lose control of the bladder. At this time, bladder will suddenly contraction, even if has not yet full of urine bladder. Women are more likely to suffer from the bladder problems, to enter the menopause, estrogen withdrawal makes urethral tissue more thin, more weakness, the support of the bladder function so down. In middle age, bladder capacity normally only about half of young people. If 30 when can accommodate two cups of urinary bladder, then age 70 can only hold a drink. It will cause the frequency of the toilet more frequent, especially the muscle flexibility drops, makes the bladder urine can't empty further, which in turn cause urinary tract infection. Lung: from 20 began to aging from 20 years old up vital slowly decrease, in 40 years old, some people will appear the panting of the situation. Part of the reason is breath control muscles and chest stiffen up, making the lung running more difficult, also means that exhale some air will remain after the lungs-lead to panting. 30 years old, ordinary men every breath breathe 2 pint of 946 pounds (ml) air, but at 70 years old, that number down to 1 pint of 473 pounds (ml). Voice: from 65-year-old began to aging as the growth of the age, we will become the voice of the tender voice gas, and more and more hoarse. This is because the throat of the soft tissue weakening, the influence of the voice sound quality, loud degree and quality. At this time, the voice of a woman becomes more and more raucous, sound quality more and more low, and more and more weak man's voice, and the sound quality is higher and higher. Eyes: from the age of 40 aging with vision loss, many years had lent glasses became the symbol of the middle-aged features high hyperopia, influence the ability of object we look nearly. British Southampton university eye science professor Andrew ROM, that, along with the growth of the age, eye muscles become more and more powerless to, the ability to focus on eyes began to decline. The heart: from the age of 40 aging with our body increasingly grow old, heart to send blood round the body also begin to reduce the efficiency of, this is because blood vessels gradually lose elasticity, artery may also become hard or become blocked, causing the cause of these changes is the fat in the coronary artery accumulation formation: eat too much saturated fat. Transported to the heart's blood after reducing, cause angina. Men over the age of 45 and 55 women over the age of the probability of the larger heart attack. A British pharmaceutical company, a new study found that the British heart average age than their age 5 years old,MLB hats and they may be the obesity and lack of exercise relevant. Liver: 70-year-old began to aging liver seems to be the only body can challenge the aging process organ. British royal hospital liver Lester consultant surgeon David Lloyd explained: "liver cells regeneration ability is very strong." He says a liver resection after three months it will grow into a complete the liver. If donors do not drink not taking drugs, or no had infectious diseases, so a 70-year-old's liver can also for transplantation in 20 years old. Renal: 50 years old began to aging kidney filtration capacity from 50 began to reduce, kidney filtration can filter out the waste blood, kidney filtration reduction of consequences is, people lost the night suppress urinary function, need many times ran a toilet. 75-year-old's kidney filtration HP is 30 years old are half. 
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