Straight ege refers to a lifestyle and scene that started within the hardcore punk subculture whose adherents abstain from alcohol, smoking and recreational drug use. Some adherents may also abstain from caffeine and promiscuity. The term was coined by the 1980s hardcore punk band Minor Threat in the song "Straight Edge". There is considerable debate over what constitutes a straight edge lifestyle. Adherents' main objective is to not poison the body in any way. Some people in the straight edge movement embrace a vegetarian lifestyle and others abstain from all animal products, a philosophy known as veganism. These two choices are considered add-ons to the straight edge lifestyle and are not essential aspects of the movement.