Answer: Weak tooth enamel.
Explanation: Bulimia nervosa is a serious eating disorder that consists of eating large amounts of food and then purges to get rid of extra calories. As you might know, when you throw up, some acid in your stomach also goes out with the food. This stomach acid weakens your tooth enamel.
The correct answer is Focuses energy. Eustress is defined as being beneficial to the one experiencing it. Such as being stressed out because your school final for a class is due soon, and you need to continue to work on it in order to pass.
