Physiological changes in men after the age of 50 include physical strength and sexual function. 1. Physical strength: after 50 years old, men’s physical strength will decline, not as good as before, these changes are normal, after 50 years old, men should not overwork, do not force to do physical labor, to avoid affecting health. 2. Sexual function: after 50 years old, men’s sexual function will decline, not as good as before, libido will decline, ejaculation will decline, these physiological changes are normal. 50 years old men should not have frequent sex to avoid harming their health. After 50 years of age, if men have physical discomfort, we should actively consult the doctor, under the guidance of the doctor treatment, patients do not take medication without authorization, to avoid adverse results.