Coxson and his colleagues found the lung structures of anorexia nervosa patients showed loss of tissue that helps deliver oxygen to the rest of the body. Similar changes are seen in people with emphysema caused by cigarette smoking. These changes result in shortness of breath and other respiratory problems.

Symptoms of Anorexia

• You don’t eat enough, so you’re underweight.
• Your self-esteem is based on the way your body looks.
• You are obsessed with and terrified of gaining weight.
• It’s hard for you to sleep through the night.
• Dizziness or fainting.
• Your hair is falling out.
• You no longer get your period.
• Constipation.

The main difference between diagnoses is that anorexia nervosa is a syndrome of self-starvation involving significant weight loss of 15 percent or more of ideal body weight, whereas patients with bulimia nervosa are, by definition, at normal weight or above.

The physical effects of these behaviors may create difficulties both in falling asleep and staying asleep. Multiple studies have observed poor sleep in people with anorexia nervosa22 including more sleep disruptions, lower sleep quality, and less time spent in restorative deep sleep and REM sleep stages.

ARFID is a new addition to DSM-5, the official list of psychiatric diagnoses. It had been known as feeding disorder of infancy or early childhood, or eating disorder, not otherwise specified.

Bigorexia, also known as muscle dysmorphia, is a disorder in which a person constantly worries about being too small and frail looking. This disorder is said to be the opposite of anorexia nervosa, a disorder nearly all eating disorder residential centers treat.

However, it is important to note that not everyone with body dysmorphic disorder has an eating disorder. There are people with body dysmorphic disorder who focus solely on specific body parts (like the shape of their nose).

Symptoms

1. Eating unusually large amounts of food in a specific amount of time, such as over a two-hour period.
2. Feeling that your eating behavior is out of control.
3. Eating even when you’re full or not hungry.
4. Eating rapidly during binge episodes.
5. Eating until you’re uncomfortably full.
6. Frequently eating alone or in secret.