You should never let others pressure you into doing sexual things if you don’t want to. If someone is peer pressure you into doing sexual things tell adult you trust so they get you the help you need.
I believe it’s reduce depression because it’s says in the question “mental”
It is very important because it helps you to reach and keep up a healthy weight, decrease your hazard of constant illnesses (like heart malady and cancer).
Please correct any mistakes in my answer!! I'd be glad to fix it!! :)