During sexual intercourse, the blood vessels of the whole body are congested and dilated, and the pores of sweat glands are in an open state of perspiration. At this time, when the cool wind blows, the blood vessels of the skin will suddenly contract, so that a large amount of blood will return to the heart and increase the burden on the heart; At the same time, it will also cause the sweat gland drainage hole to suddenly close, so that sweat stays in the sweat gland, which is not conducive to perspiration and is easy to catch a cold.

Secondly, after sweating a lot in summer, blood viscosity increases, blood supply to the brain decreases, and oxygen supply is insufficient. At this time, if you enter a room with a lower temperature, your blood vessels will contract and your brain will be seriously deprived of oxygen, so you are particularly prone to fatigue after sexual intercourse.

In addition, if you stay in an air-conditioned room all day, it is difficult to circulate the air, and a lot of bacteria will accumulate in the room. In the case of fatigue and sweating, people's resistance will decrease and they will be easily infected with other diseases.

Of course, it is not good to have sex in a hot environment without air conditioning. It's best to use air conditioning before sex. Turn on the air conditioner half an hour in advance to lower the room temperature, and keep the difference between indoor temperature and outdoor temperature at about 5- 10 degrees. It is best to open the window for ventilation or turn on the electric fan to cool down before sex.

If you sweat before sexual intercourse, you should wait until the sweat is completely dry and your heartbeat is stable before sexual intercourse, otherwise it will easily lead to collapse. If you find that you have a lot of abnormal sweating in after making love, it may be a sign of weakness. It is best to go to the hospital for examination in time and adjust your lifestyle.