When men reach middle age, their physical strength and energy decline, and they are not as enthusiastic about sex as they were when they were younger. Most people attribute this phenomenon to the increased pressure of life, the decline in physical fitness, or the relationship between the couple. It is true that all of these conditions can have an impact on sex life, but they also overlook the fact that obesity is also one of the most important factors affecting sex life. Fat cells are also a hormone-secreting cell, but also have an impact on other hormones, when men are too obese, their bodies will produce more estrogen, resulting in some feminine features, such as we all know that obese men generally have larger breasts than men of normal weight, and also have a certain impact on their emotions. Research says that men’s sex drive and the amount of androgens in the blood have a great relationship, so when the secretion of estrogen increases and androgens decrease, their sex drive will also decline. At the same time, obesity also leads to lower testosterone production and increased estradiol production, causing erectile dysfunction. And excessive fat near the testicles will cause the temperature of the scrotum to rise, which directly affects the spermatogenic ability of the testicles, and the sperm activity rate will decrease, which can seriously cause infertility. Nowadays, many middle-aged men are facing the threat of obesity, and with the increasing pressure of life, this situation will become more and more obvious. And the impact of obesity on the body is far from just sex, like diabetes and many other chronic diseases and cancer are related to obesity, so no matter what, prevention of obesity or timely weight loss is very important.