Marcy should not do it. Supplements don't make you lose weight, they make you lose fat, something your body needs. Excersising would be way healthier for her than supplements.
Answer: The angle between them is not defined!
It's easier to understand the difference when you treat them as separate entities. Mental health is about mental wellness - we all have mental health. Mental illness is when someone is diagnosed with a mental disorder.
Answer: Lots of people have fun runs or community activities where you can play a game such as basketball, baseball or soccer. Although instead of drinking soda you could drink Gatorade or water and encourage the people around you to be healthier in their dietary choices.