Euphoria is a feeling of physical or moral well-being disproportionate or unrelated to a given situation. It is a symptom of psychiatric illness, but can also be caused by intoxication. The use of drugs such as cannabis, cocaine, or amphetamines, can cause a feeling of euphoria by stimulating certain neurotransmitters, such as dopamine. The intensive practice of sports also releases endorphins that create a smaller scale euphoria. At the psychiatric level, individuals with bipolar disorder, a new term for manic-depressive illness, may have euphoric states at the time of mania.