Answer:
-Exercise regularly. Physical activity plays a key role in reducing and preventing the effects of stress. ...
-Eat a healthy diet. ...
-Reduce caffeine and sugar. ...
-Avoid alcohol, cigarettes, and drugs. ...
-Get enough sleep.
Infrastructure, because it's not a part of the environment, it's not a form of transportation, not a service either. Thus the only remaining answer is Infrastructure
You should tell her that bones are more important than muscle and that muscle can't be anything without strong bones