The current celebrity ________ claims to have been a victim of Munchausen syndrome by proxy during childhood

If Sylvia is described as trustworthy, altruistic and tender-minded, then she probably is fairly high on the Big Five factor known as ________

a) extraversion b) neuroticism c) openness d) agreeableness

A substance found in milk that promotes sleep is ______

a. tryptophan c. endorphin b. lipoprotein d. acetylcholine