###Human: Can masturbation cause nervous system diseases? ###Assistant: Hello. Masturbation is a universal habit. It is present in most human beings. It helps to maintain sexual hormone levels, acts as a stress buster, and in males it protects against prostate problems and cancer. Also, the old sperms are pushed out of the body, to make way for new sperms. Old sperms need to be removed. This happens through sex usually. If sex is not happening, then through masturbation. If both are not happening, then via nightfall. A person can masturbate safely depending on his health status. He needs to drink plenty of water and eat healthy nutritious food regularly since it is a kind of an exercise with calorie loss. So, masturbation is a safe and healthy habit. For more information consult a sexologist online -->