Final answer:
Muscle dysmorphia is a disorder characterized by an excessive preoccupation with body size and muscularity. Purging by using laxatives and/or vomiting is not a characteristic of muscle dysmorphia.
Step-by-step explanation:
Muscle dysmorphia, also known as 'bigorexia' or 'reverse anorexia,' is a disorder characterized by an excessive preoccupation with one's body size and muscularity. It is commonly associated with individuals who engage in rigid and excessive exercise routines, use muscle-enhancing drugs and/or supplements, and experience an increased risk for anxiety and depression.
However, purging by using laxatives and/or vomiting at least daily is NOT a characteristic associated with muscle dysmorphia. This behavior is more commonly seen in individuals with eating disorders such as bulimia nervosa.