As little as 30 minutes of total exercise per day, even if it occurs in short 10- to 20-minute sessions, can improve mood and energy and relieve stress

Paul et al. (2000) found that what percentage of American emerging adult college students reported having at least one episode of "hooking up" that included sexual intercourse?

a. 10% b. 30% c. 50% d. 70%

What is a new trend in the United States that represents a return to an older tradition that has existed for centuries in other cultures?

a) Using a midwife b) Using a doula c) Using hypnosis d) Using natural birthing techniques