Psychological disorders which may be confused with an eating disorder, or be co-morbid with one: 1  Emetophobia is an anxiety disorder characterized by an intense fear of vomiting. A person so afflicted may develop rigorous standards of food hygiene, such as not touching food with their hands.
Having a good lung capacity is important because you'll need it when it comes to sports and running.
The heart is the most important muscle of the body because it is the organ that pumps the blood throughout the body to carry out oxygen and nutrients, and helps collect and el â¦ iminate carbon dioxide and other wastes from the body.1 person found this useful.or the cells to respire they need oxygen and glucose as substrates. The waste products after the reaction is carbon dioxide, as human body is large it needs a pump to circulate all this oxygen to all the cells and dispose the waste co2 to the lungs. So, heart muscle is important muscle in the whole human body.