The Science Behind Why Stoned Sex Is So Good, Explained. Whether you've already experienced the joys of stoned sex or are curious about using cannabis to amplify and diversify your sex life, the good news is that your body is ready. “Cannabinoids can enhance sex because the human body makes its own cannabinoids called endocannabinoids,” explains Dr. Karyn Eilber, Associate Professor of Urology and Obstetrics & Gynecology at Cedars-Sinai and co-founder of Glissant Intimate Wellness.…