3-Exercise increases body temperature, and warm temperature, like exercise, can enhance mood. Serotonin (5-HT) neurons involved in temperature regulation are activated by warm temperature and have been suggested to be important for the mood-enhancing effects of exercise. What is a plausible explanation for how 5-HT neurons involved in temperature regulation could enhance mood?

6-What are 4 neurobiological theories of depression and their definitions?

7-Despite the widespread belief that a serotonin (5-HT) deficit contributes to depression, experimental evidence indicates this is not the case. Describe 2 experimental ways to test the idea that reducing 5-HT causes depression.

14-One indirect mechanism by which exercise could reduce depression is by enhancing one's sense of control. Indeed, a sense of control over life events can help protect organisms against later depression.

Is a sense of control over exercise necessary for the ability of exercise to protect against stress-induced depression in rats (yes or no)? How do you know?