Answer:
the two parts of the brain most involved are the basal ganglia and cerebellum
Explanation:
Try sleeping in dark quiet room that you are comfortable in. You can also play relaxing type of music such as calm music or nature sounds to help improve sleep. Just relax, and free your mind.
Hope this helps!
<em>~ ShadowXReaper069</em>
You didn't put any of the options but I would probably say something like because America is becoming obese and fat.
