Aerobic exercise can lead to an increase in
a. the number and size of coronary arteries feeding the heart.
b. exercise-related injuries.
c. bone loss related to repeated joint stress.
d. ldl cholesterol levels.

Calvin is a 12-year-old boy. due to pressure from his friends, he has started consuming certain toxic materials that are addictive and harmful. calvin is a victim of what type of abuse? a. sexual b. substance c. physical d. emotional

How could you find out if that advice is based in scientific evidence?

Which health resource is most appropriate for a woman who thinks she might be pregnant?