What Causes Euphoria?

Depends, since euphoria means happiness, excitement or feeling great. If you mean naturally instead of drug wise – some things that can cause euphoria are; working out, thinking positive thoughts, eating chocolate, adrenaline or being scared, laughing hysterically, acupuncture, having an orgasm. All of these release endorphins that are transmitters in the brain that reduce pain and also induce your euphoria.