Involuntary celibates have some of the lowest levels of STD's in the world. This is because incel-experiencers don't have sex, so you can't transmit it. In terms of their sexuality, most incelibates are normophilic, allosexual and heterosexual. Involuntary celibates tend to lack the hormone oxytocin which may lead to various social and physiological stunting such as a being detached from knowledge of social bonding.
There are ignorant people who claim that sex is optional for allosexuals and that allosexuals don't need sex. Multiple forms of data and studies suggest the opposite; that sex is the ultimate anti-depressant.