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.
Lung capacity determines how long you will endure in any exercise. Try to build up lung capacity slowly, one step at a time. Your lung capacity will determine how long you will be able to perform and exercise, particularly cardio.