Do you mean mental disease, or physical disease? It is a well researched understanding that sex is very important for both mental and physical health, and with

Do you mean mental disease, or physical disease? It is a well researched understanding that sex is very important for both mental and physical health, and with the massive amount of money spent on sex education, I'd hope it's clear how to avoid physical disease. And I never mentioned promiscuous behavior. It's quite possible to have sex, with have sex with many different people.