Brain: the age of 20 aging
As we grew older, gradually reduce the number of nerve cells (neurons) in the brain. We come into this world the number of nerve cells reach about 100 billion, but the 20-year-old began declining. 40 years old, the number of nerve cells in decreasing the rate of 10,000 a day, so the impact on memory, coordination and brain function. London, United Kingdom Imperial College Healthcare National Health Insurance Trust consultant, neurologist Wojiteke - Mubarak Witts said that despite the crucial role of the nerve cells, but in fact the function of the gap between brain cells degradation impact on the human body .
Intestine: from 55 years of aging
Healthy intestine can play a good balance between harmful and beneficial bacteria. Barts and the London School of Medicine, professor of immunology - Tom McDonald said that after we move into the age of 55, the number of friendly intestinal bacteria substantially reduced, this scene will be staged in the large intestine. The results of the human digestive function decline, increased risk of enteric diseases. Increases as we age, the stomach, liver, pancreas, small intestine, the flow of digestive juices begin to decline, the occurrence ofConstipationThe chance will increase.
Breast: from 35 years of age aging
To 35 years of age, the breast tissue and fat loss, the drop as a result of the size and fullness. From the 40-year-old woman breast ptosis, the areola (nipple area) around a sharp contraction. Although with age,Breast cancerThe probability of occurrence increases, but no connection with the physical changes of the breast. Gareth - Evans said human cells increases with age is more likely damaged this way, genes that control cell growth can mutate, triggering cancer, breast cancer specialists of St. Mary's Hospital, Manchester.
Bladder: from 65 years of aging
The age of 65, we are more likely to lose control of the bladder. At this point, the bladder of a sudden contraction, even if the urine is not yet full of the bladder. Women more vulnerable to bladder problems, entered the menopause, estrogen levels decline urethral tissue to become thinner, moreInability, The support function of the bladder is therefore declined. People to about half of the middle age, bladder capacity is generally only young. If you said 30 years old bladder can hold two cups of urine, then the age of 70 can only accommodate a cup. This will cause more frequent toilet visits, in particular, is the decline in muscle flexibility, making the urine can not be completely emptying the bladder, which in turn lead to urinary tract infections.
Lungs: aging from 20 years old
Vital capacity from the age of 20 began a slow decline, to 40 years old, some peopleAsthmaYu Yu of the situation. Partly because of muscle control breathing and chest become stiff, making the functioning of the lung is more difficult, but also means that some air after breath left in the lungs - resulting in breathless. 30 years old, ordinary men each breath inhale 2 pint (about 946 ml) of air, and by the age of 70, this figure dropped to 1 pint (about 473 ml).
Sound: aging from 65 years of age
Grow older, our voice will become softly thin air, and more and more hoarse. This is because the soft tissue in the throat weakening affect the sound quality of the voice, loud and quality. At this time, a woman's voice becoming more and more hoarse, and the sound quality is getting lower and lower, while the men's voices more and more weak, the sound quality is getting higher and higher.
Eyes: aging from 40-year-old
With decreased vision, glasses have become a signature feature of a number of years over Lent middle-agedHyperopia, Affecting our ability to see objects near. Andrew - Roth, professor of ophthalmology of the University of Southampton in the UK, that increase with age, the eye muscles become increasingly weak, and the eye's focusing ability began to decline.
Heart: aging from the age of 40
With the efficiency of our body is increasingly getting older, the heart to pump blood to the body also began to decrease, it is because the blood vessels gradually loses its elasticity, the arteries may harden or become blocked, the reason for these changes is the accumulation of fat in the coronary artery formation : eating too much saturated fat. After transportation to the decrease in the blood of the heart, causingAngina. The probability of men over the age of 45 and women over the age of 55 heart attack. A pharmaceutical company in the United Kingdom, a new study found that the average age of the British heart is five years older than their actual age may be related to their obesity and lack of exercise.