Coffee side effects Coffee has a refreshing effect

Coffee has been found to have a refreshing effect because it contains caffeine. Of course, caffeine is not just coffee, green tea, black tea and so on also have caffeine. Therefore, some people say that coffee or tea before sex can be a good adjustment of people's mental state. So what exactly does caffeine do to sex? Before answering this question, it is necessary to explain what is meant by refreshing.

Simply put, this is because caffeine in coffee or tea stimulates sympathetic nerves. It is the sympathetic nerve that governs all activity during the day. Stimulation of it restores energy and makes everything more lively.

But from another perspective, this was equivalent to suppressing parasympathetic nerves. Since sympathetic nerves and parasympathetic nerves belong to the relationship between the surface and the inside, when sympathetic nerves are active, parasympathetic nerves, which are weaker than sympathetic nerves, are suppressed. The parasympathetic nervous system is responsible for night physiology, erection and other sex-related parts. If caffeine intake is excessive, it will have a negative effect on sex.

So instead of trying to use some widely circulated but useless method to strengthen male vigor, it is better to really understand the effective method here. Therefore, the usual emotional ups and downs, sympathetic easily excited people, especially before sex, it is best not to drink caffeinated coffee and other drinks. So as not to suppress parasympathetic nerves, reduce libido.