What is the main advantage of sport? Choose the best answer. A. it allows you to eat as much as you want
B. it allows you to get rid of sources of stress
C. it allows you to be more beautiful than your friends
D. it improves the health of your respiratory system

Which of these is most likely to prevent pregnancy? a. tracking of female body temperature to identify ovulation times b. proper condom use c. male withdrawal before ejaculation d. proper spermicide use

Which of the following defines scoliosis? a. a posture disorder characterized by the shoulders being rounded and the back hunched b. a posture disorder in which the spine curves up the back like a snake c. a posture disorder characterized by excessive curvature or arch in the lower back d. none of the above

Not type of personal health monitor can calculate the number of calories a person burns. true or false?