Psychologist George Vaillant believed that a stage entered between the ages of 20 and 40, when young adults become centered on their careers is called

Cocaine and crack produce a euphoric rush by:

A) blocking the actions of serotonin B) depressing neural activity in the brain C) blocking the reuptake of dopamine in brain cells D) stimulating the brain's production of endorphins

_____, and _____ are viral sexually transmitted diseases

Fill in the blank with correct word