Final answer:
The statement about endomorphs being muscular and athletic with a medium-sized frame and wide shoulders is false; it describes mesomorphs. Cultural pressures can result in eating disorders, and individuals vary in muscle fiber composition. Also, anabolic steroids do not make people taller, and the knee is the largest joint.
Step-by-step explanation:
Endomorphs are typically characterized as having a higher percentage of body fat, not necessarily being muscular and athletic with a medium-sized frame and wide shoulders. The statement describes more of a mesomorph body type, which is known for being muscular and well-built with a higher metabolism and responsive muscle cells.
It's worth noting that cultural ideals and pressures to be slender or muscular can lead to disorders such as anorexia and bulimia nervosa. In specific fields, like dancing or athletics, the pressure to maintain a certain physique can result in a higher prevalence of these disorders compared to the general population.