10 irreversible signs of aging in men

　　From the time a man reaches middle age, various functions and organs of his body begin to age. The following 10 aging phenomena are irreversible aging in men.

　　1. Brain function : The ability to concentrate and language skills do not change much with age. The ability to store and retrieve information decreases slightly but steadily from the age of 20.

　　2. Cardiac response ability: After the age of 20, the acceleration stress of the heart begins to decrease. Max per minute heart rate On average, it decreases 10 times every 10 years.

　　3. Aerobic endurance : Due to the decrease in the body's oxygen supply capacity and reduced working ability, the working ability at the age of 70 is only half of that at the age of 20.

　　4. Body fat: At the age of 75, the proportion of body fat doubles that at the age of 25, with most of the increase in muscles and heart organs.

　　5. Muscles and Bones: As age increases, muscles atrophy and muscle strength weakens, but this change can be achieved through physical exercise exercise be compensated. Although bone decay is a common feature of aging, the rate of decline can be slowed by exercise.

　　6. Hair loss : As age increases, the number of hair follicles on the scalp decreases, and the growth rate of the remaining hair also slows down.

　　7. Listening: The eardrum thickens and the ear canal atrophies, making it difficult to hear pure tones (sine tones) and high-frequency sounds, especially when approaching 60 years of age.

　　8. Lung function: Due to the hardening of the chest wall, the burden on the respiratory muscles increases, and more air remains in the lungs after each breath.

　　9. Sexual impulse frequency: Decreased sexual arousal varies from person to person, but is inevitable due to lower levels of sex hormones and reduced energy. After reaching the highest value at the age of 30, it decreases by about 30% every 10 years.

　　A lot of clinical The data tells us that prostatitis , prostatic hypertrophy, orchitis, epididymitis, hydrocele, spermatorrhea, Premature ejaculation，Impotence ,No ejaculation , penile cancer, etc., are harmful to men healthy common diseases that afflict many male。

　　10. Penis erection angle: Under normal circumstances, the erection angle of the penis reaches its maximum value at the age of 30, and then gradually decreases as the age increases. The greatest decline occurs between the ages of 50 and 70. The main reason for this change is the aging of blood vessels.