Pituitary hormones control your sleep and wake up cycle and I think it affects the brain
Answer:
Humans are social creatures.without being around others we cannot really function, science has proven that humans learn off of other humans we mimc they're behaviors and actions.Without friends and other social activities then we wouldn't be able to act accordingly basically like robots we would have trouble functioning.
Explanation:
Running. D, I was going to put down, A, but D is most logical as well.