That goes for orgasms and libido, just as it goes for happiness and sadness, love and pain, and all stages of awareness. It's all very chemical, with hormones and neurotransmitters the main players. Sensory input and emotional output are an overlay, through which neurobiochemistry communicates with the outside world.
It's in our genetic constellation that certain biochemical states appear pleasant and others don't. There is a wide range of variation, as some people even consider certain manifestations of pain, including suffocation, as erotic, and others have a very limited capacity for love.
There are, in principle, two methods by which we can interfere with our brain chemistry.
Either pharmacologically, via the supply of chemicals, or non-pharmacologically.
Good non-pharmacological methods are many forms of sexual activity, other pleasurable endeavors, from food to music, thrills like skiing or rock climbing, physical exhaustion by running or biking, or hypnosis and meditation. The purpose of all the above is the endogenous release of neurochemicals that make us feel good.
On the other end of the spectrum are chemicals that directly induce positive feelings, of which opiates are the best example. With the right opiates, one feels good whatever one's actual condition. Philosophically, opiates are one of the greatest achievements of humanity, as they allow us to engineer a gentle death.
And then, there is a wide range of possible pharmaceutical interventions that do not make us feel good directly but enhance our natural potential to feel good. Sildenafil citrate, Tongkat Ali, marijuana, yohimbe, and dopaminergics, even though they are very different from one another, are all used because they enhance our potential to feel good via the sexual route. Testosterone and Tongkat Ali have effects on the male physique and can make users feel better when looking into a mirror.
That governments regulate some of these substances has nothing to do with how useful they are for the individual. It's also not that governments prohibit substances out of concern for the health of their citizens. If that were the case, alcohol would have been banned long ago. Substances are banned for a complex constellation of ideas on the part of those who have the power to decide, and many of these ideas are simply false.
The bottom line is that the fact that some substances make us feel good by intervention in brain chemistry speaks in their favor, not against them.
