Post-coital tristesse

Sexual intercourse can sometimes lead to a feeling of melancholy called post-coital tristesse (from Latin post-coital, and French tristesse, literally — “sadness”). This is more common in women than in men. Many PCT sufferers may also exhibit strong feelings of anxiety, anywhere from five minutes, to two hours after coitus.

Additional recommended knowledge

Essential Laboratory Skills Guide

Weighing the right way

Don't let static charges disrupt your weighing accuracy

Some men also report similar feelings of anxiety and guilt after masturbation.