Jennifer Pollock

“Watching violent, arousing shows may actually contribute to suppressing your immune system. As you identify with the anger you see on the screen or read about, stress chemicals called catecholamine and cortisone are released that can adversely affect your immune system. The effect of exposure to both anger and love on the immune system was shown in research by Harvard scientist David Mclelland, and later reproduced by the Heart Math Institute in California (Bhat 1995). Watching an anger-provoking movie suppressed the immune system (as measured by chemicals in the saliva) for five to six hours in study subjects. However, watching a movie about the compassionate work of Mother Teresa caused elevation of the immune level in the participants.”
― Ted Zeff, The Highly Sensitive Person's Survival Guide: Essential Skills for Living Well in an Overstimulating World