Physiological activities of ancient people?

People all think that human sexual activity should be a normal behavior. Why? The answer can be found in the following conclusion. In human society, most men and women finally maintain a long-term marriage relationship. Therefore, other members of society regard it as a contract, and both parties undertake obligations to each other. Sexual intercourse between spouses is the other's main or only sexual partner. In addition to this sexual union, marriage also has a partnership to raise offspring together.

Although husband and wife (occasionally polygamy) are formed, husband and wife (children) do not monopolize a territory as a husband and wife living alone, and other couples are not allowed to infringe. They live with other couples in society and have cooperative relations with economic interests. Spouses in marriage always have sex in private, not in front of others.

Human sexual activities from ancient times to the present.

The ovulation period of human beings is covered up and unknown to everyone. In other words, during the short pregnancy period before and after ovulation, it is difficult for women to be noticed by their potential sexual partners and most women themselves. Women's acceptance of sex extends from pregnancy to most or the whole menstrual cycle.