Because economic success is so dependent on ___________, dropping out often perpetuates a cycle of poverty

Dominance hierarchies are uncommon in children's groups

Indicate whether the statement is true or false

When marital relationships have negative effects on physical health, what is the physiological mechanism at work?

A) Increased blood pressure B) Increased VO2 max C) Production of the neurotransmitter serotonin D) Production of the stress-related hormone cortisol