Sexual life is usually 2~3 times a week, so it is normal to have sex about 2~3 days apart. Sex is the expression of sexual impulse in life, and the significance of sex is generally to enjoy pleasure, strengthen the emotional bond, reproduction and reproduction. Sexual intercourse is generally spaced about 2-3 days apart, which can improve the understanding with the partner and enhance physical fitness. If the interval between sexual intercourse is short and the frequency is too frequent, symptoms such as mental depression, lumbar and knee pain and weakness may occur, and it may also cause endocrine dysfunction in the human body, leading to a decline in immunity. Women may experience damage to the cervix and vaginal mucosa, leading to cervicitis and vaginitis. Men may develop seminal vesiculitis, prostatitis, premature ejaculation, orchitis and other diseases. You should have regular sex in your daily life, usually at intervals of 2~3 days. Pay attention to hygiene before and after sex to avoid infections and diseases. At the same time in sexual life to avoid rough action, so as not to cause harm to the body.