00:43
Serotonin
Dean Hamer, Director of the Gene Structure and Regulation Unit at the National Cancer Institute, talks about the chemical serotonin and the role it plays in the brain. As it turns out, harm avoidance is controlled by serotonin. Unfortunately, this c...
01:27
Harm Avoidance (Part Two)
Dean Hamer, Director of the Gene Structure and Regulation Unit at the National Cancer Institute, expands on his discussion of harm avoidance, which he explains refers to a group of personality traits that includes depression, anxiety, feeling bad ab...