As a student of neurology I can say three facts regarding homosexuals in general, as well as homosexuals that suffer fromhyperaexuality and/or paraphilias.
It is a little known fact that gay males are five times more likely to abuse methamphetamine Hcl than any other group COMBINED. Why start out by mentioning meth? For two reasons
1. Methamphetamine molecules look almost identical to a very important neurotransmitter that you have in your brain- Dopamine. Dopamine is the neurotransmitter that gives us feelings of pleasure that we get in things that make us feel happy. Sex and orgasm release approximately 360 units of dopamine. Our enjoyment of food releases 559 units. Cocaine releases 900 units. Methamphetamine releases close to 2000!
What is important to understand about dopamine is that it the chemical the gives you thepleasureable sensations in methamphetamine, alkyl nitrates (poppers), having sex, eating food that tastes great. Anytime you feel a burst of pleasure it's because of dopamine.
gay males we have found have a serious debt in the number of units that would naturally get released so that you may feel pleasure. While dopamine makes us feel good, it also teaches us what we do not like. Now, because gay males are born with below normal dopamine units and receptors, we typically have many psychiatric issues like depression, anxiety, etc., all these symptoms tell another neurotransmitter called glutamate as well as GABA which deals with thinking, creativity, and memories. Hence growing up many of us do not conform to the typical things that make us happy.
Once puberty starts, we typically exert most of our dopamine to feel pleasures having sex. That's why most of us are sluts. We must constantly try to feel as happy as possible and dopamine gets released typically to increase our sex drive. But dopamine only deals with pleasure. Our abnormal thoughts that turn us on so that we can feel pleasure come from GABA and Glutamate. Since these neurotransmitters have taught us negative things like being gay isn't normal, etc., it tends to skew us to take certain pleasures in abnormal and dangerous activities. This tells dopamine to give you a lot of pleasure in doing unsafe things such as having unprotected sex, willingness to contract diseases that are very damaging.
What makes matters worse is that for those gay males who use methamphetamine, they do not realize that they literally deplete dopamine levels seconds after they get released. This is why many males cannot maintain an erection while under the influence.
In sum, our paraphilias and hypersexual tendencies are a disease of our brain- we can thank certain genes like DRD4 for that .