Having friends who support you can improve your mood, which can in turn
decrease your lifespan
lead to depression
lead to better mental health
do harm to schoolwork

The correct answer is C. Lead to better mental health

Explanation:

One of the most important aspects of health and especially mental health is the social context that involves the type of relationships we have with other people (friends, family, co-workers, classmates, etc), and whether these relationships are a source of companionship and support. This can be explained as having people that support you makes you feel better (higher level of satisfaction, and happiness)and can prevent certain mental illnesses such as depression or anxiety which is related to better mental health. According to this, having friends who support you improves mood and leas to better mental health.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.