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.
Why Oxygen is Important. Oxygen is necessary for your body. It is used by all of your main organs and tissues. When your body does not get enough oxygen, you may have difficulty breathing, problems with your heart, fatigue, loss of memory, headaches, or confusion.