10 Signs of Physical Aging in Men

　　1. Vision

　　The lens of the eyeball continues to thicken with age, and after the age of 50, men will gradually experience significant vision loss and focus failure.

　　2.Hair

　　As age increases, male The number of hair follicles on the scalp is decreasing day by day, the hair is getting thinner and thinner, the hair growth rate is getting slower and slower, and more and more men are suffering from hair loss.

　　3.Heart function

　　After the age of 20, men's heart's ability to regulate during strenuous exercise becomes increasingly reduced. per minute of exercise for a 20-year-old boy heart rate The fastest can reach 200 beats, which decreases to 140 beats at the age of 30. After that, for every 10 years of age, the fastest beats of the heart decrease by 10 beats per minute.

　　4. Listening

　　The eardrum thickens, the ear canal shrinks and narrows, and it becomes increasingly difficult to distinguish pitches, especially high-frequency sounds. This situation becomes increasingly obvious after the age of 60.

　　5. Oxygen supply and endurance

　　A 70-year-old man has only half the physical strength of a 20-year-old man.