Manipulative peer pressure where her thoughts and judgement are clouded by the need to not be ostracized
I would imagine that mental health is your sanity, like how you think and what your brain handles. Emotional health is your feelings from what I see. Like anger issues or depression. They're both very similar, as they can both cause people to have different personalities than they usually do.
I have 2 Choices for you to choose!
A. Circulatory System
B. Blood Vessels
The answer is Circulatory System.