Your friend is watching an exciting sports match of her favorite team. She is eating snack foods nervously, because of the action, the suspense and her apprehension. Her drive to eat is most likely based on

Emotional comfort

Explanation:

In the situations of anxiety where the outcome of an event or situation is beyond our control such as in the question of watching a sports match that can either favor her team or the other team, making use of food to take care of the emotional need to feel good by the outcome (which ever way) of the game in the question rather than as a result of the need to eat is known as emotional eating.

The type of food chosen for comfort are reflective of the use consisting of junk food, snacks, sweets and other mode uplifting but unhealthy foods.

don't worry, but do consult a doctor.

explanation:

having a high metabolism at age 13 is not abnormal.   however, if you are concerned, do consult a doctor.   the doctor may identify a correctable issue, and then you'll have your answer.   in the meantime, there are a few steps you might consider.

first, reflect on just how much physical activity (work out and dancing) you are getting relative to your caloric intake.   keep in mind that if you are interested in gaining weight, you must have a higher caloric intake than output.   second, if eating robust healthy meals is not providing enough calories, you'll need to include high caloric, yet healthy, snacks.   i warn against using an over the counter high-calorie supplement (drink or food) until you have consulted a doctor.  

was there more to the question like a picture or something? also i mean with no picture i think something that's not likely to be an educational impact would probably be the way the child is raised since it has special health care needs