Substance abuse, also known as drug abuse, is a patterned use of a drug in which the user consumes the substance in amounts or with methods which are harmful to themselves or others, and is a form of substance-related disorder.
vegan lifestyle. one factor that could influence that is family relations. for instance, maybe a parent is not supportive of going vegan. this could cause you to want to forget about being vegan, or it may cause you to want to be vegan out of spite.