7 secrets for men to stay strong (adult novel about sex)

Alternating hot and cold water baths can improve the sexual function of middle-aged and elderly men. This is a very old exercise method to enhance men's sexual function. When using alternating hot and cold water baths, it is best to wait until the bathtub is fully warmed up before getting out of the bathtub.
Apply cold water to the genitals and wait for about 3 minutes until the penis and scrotum have contracted before entering the bathtub. Repeat 3-5 times
It can be stopped after times. If you can insist on doing "alternating bath" every day, it can make men after middle age energetic, enhance sexual function, and reduce fatigue. The "alternating bath" of cold and hot water can use the shower head, and the effect remains unchanged.
The "air-cooling" exercise method suitable for young men is not a good sleeping state for the testicles. As mentioned earlier, the optimal temperature for the testicles to produce sperm and male hormones is slightly lower than body temperature, so if the scrotum cannot dissipate heat well, it will affect testicular function.
When the testicles should be carrying out important activities, they are trapped in the stuffiness of the quilt, which is very bad for the testicles. In fact, the solution is very simple. This means exposing the scrotum to cooler air while sleeping.
Allow the scrotum to be well ventilated and dissipate heat. For young people, this "air-cooling" exercise method is far more convenient and effective than the "alternating hot and cold water" exercise method.
If possible, it is certainly good to sleep with your scrotum exposed to the air all year round. But in winter,