How can sex and drug use overlap? Sexual experience, behavioural addictions and drug addictions share common mechanisms. They result in similar brain changes too. This overlap is evident in the research. Below you will find a sampling of work in this area.
The overlap helps explain how sex can have such profound impact on perception and priorities. Sex and drug use changes happen subconsciously. So, we generally don’t notice their (sometimes profound) effects on our perception, priorities and choices.
DeltaFosB, c-Fos, and DeltaJunD
These papers investigate the finer, technical detail of how sex and drug use can interact.