1, visual acuity
Lens of the eye ever thickening with age, men 50 years of age will be gradually noticeable vision loss and focusing are not allowed.
2, hair
With increasing age, male scalp on the dwindling number of hair follicles, hair growing thin, hair growth rate of more and more slowly, break the top of the men is increasing.
3, heart
Men's 20-year-old heart function after intense exercise in the ability to regulate less and less. A 20-year-old young man exercise the fastest heart rate per minute up to 200 times, 30-year-old was reduced to 140 times, after each additional 10-year-old, the heart beats per minute, the fastest reduction in the number 10 times.
4, hearing
Tympanic membrane thickening, shrinking narrow ear canal, right tone, especially the ability to distinguish high-frequency sound more and more difficult to identify. This state of affairs after the age of 60 has become increasingly apparent.
5, oxygen, and endurance
A 70-year-old man's physical strength is only half the 20-year-old man.
6, lung function
Chest bones become increasingly rigid, controlling the muscles of breathing increasingly heavy burden. Breathing more hazardous substances remaining in the lungs.
7, fat
Men between the ages of 25-75, the proportion of body fat tissue increased nearly one-fold, and most of the increase in fat accumulation in muscle and organ tissue.
8, sex life
Frequency is inevitable reduction in the number of sexual impulses. According to statistics, an average of 25-year-old up to 104 orgasms a year, 50-year-old 52 times, 70 times around the age of 22. A large number of clinical data tell us that, prostatitis, prostatic hypertrophy, orchitis, epididymitis, hydrocele, nocturnal emission, premature ejaculation, impotence, non-ejaculation, penile cancer, and so, endangering the health of the common man's disease, which afflicts large number of men.
9, muscle and bone
Well-developed muscle weakness gradually atrophy, bone degenerative changes occur
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