Which of the following statements about the societal costs of tobacco use is true?

It's good to be in positive energy balance when you're  a.  a fully grown adult in good health.    b.  trying to deal with stress.    c.  recovering from the flu.    d.  beginning an exercise program

If you feel pain while stretching, you should do any of the following except: a. stretch farther. b. back off the stretch. c. find an alternative. d. stop stretching.

He various types of depression have different causes as well as different levels of severity. which of the following best describes clinical depression?