Feeling slightly uncomfortable during exercise a. means that you're completely out of shape. b. is completely normal and is to be expected. c. can indicate that there's a problem with your heart. d. is a signal that something is wrong.

Which of these is a fact about performance enhancing drugs? a. steroids lack addictive properties. b. steroids use can cause dangerous side effects. c. it is safe to use steroids when working out. d. a person can get in legal trouble for using steroids.