The saying of "seven damages and eight benefits" has a long history, which was first seen in the ancient medical books of bamboo slips unearthed in Mawangdui, Changsha, Hunan Province. It is about seven kinds of sexual behaviors that are harmful to health and eight kinds of sexual behaviors that are beneficial to health. It is an important concept that Chinese medicine closely combines sexual activities with health preservation.

Physicians in past dynasties used "seven" as the number of female physiological characteristics, such as menarche at the age of 27 (14) and menstruation at the age of 77 (49); And with

Eight is the number of male physiological characteristics, such as 28-year-old spermatorrhea (16) and 88-year-old spermatorrhea (64). The ancients believed that if sex "can't use eight benefits and lose seven", that person's physiological function will be halved when he is 40 years old; At the age of 50, the ability of daily living is easy to weaken; At the age of 60, he was hard of hearing and inarticulate. If "removing seven damages to boost the illness and eight benefits to boost the vitality", it can help the elderly to recover. Mature people will not get old, their daily lives will be stable and happy, their skin will be fine and smooth, their bodies will be light and flexible, and even symptoms such as sweating and wheezing will not appear.

Specifically, these seven losses include:

1, closed, refers to male vas deferens occlusion, or no semen discharge, or severe penis pain during sexual intercourse.

2, venting, sweating during sexual intercourse.

3, exhausted, unrestrained sexual intercourse leads to exhaustion.

4, don't, the penis does not lift but insists on making love.

5, irritability and shortness of breath during sex.

6, absolutely, barely make love when there is no desire.

7, cost, sex is fast.

The eight benefits are:

1, cure qi, sit in bed after getting up every morning, straighten your back, relax your hips and shrink your anus, which can guide the downward flow of qi in your body.

2, foaming, that is, swallowing saliva in the mouth to ensure smooth breathing.

3, know when, before sex, husband and wife should caress each other, play with each other, and have sex after both sides have strong desires.

4. During gas storage and sexual intercourse, both sides should relax their backs and contract their anus.

5, and foam, sex can not be too rough, try to be gentle and soothing.

6, gas accumulation, sex, men should slow down, every step is a little pause, so that women can fully understand.

7. When the climax approaches, men should bend over; After ejaculation, men have to wait for a while, and it can't end like this.

8, fixed tilt, pull out before the penis is completely weak, both sides should clean the lower body after sex.