Euphoria (from Ancient Greek εὐφορία, from εὖ (eu), "well", and φέρω (pherō), "to bear") is a mental and emotional condition which makes a person feel extremely happy, excited, and carefree.[1] These feelings are much stronger and more intense than what a human would normally feel. However, some natural human behaviors can cause brief states of euphoria. For example, people may feel euphoric for a short time after orgasm, when in love, or after a very important athletic achievement.[2] Sometimes, people can also feel euphoria during certain religious or spiritual rituals, or while meditating.[3] More often, euphoria is caused by certain psychoactive drugs, mental illnesses, or medical problems. Euphoria is the opposite of dysphoria.