What protects the internal tissues of the body from potential harm?

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.

What is one technique to a person get proper sleep? eat a heavy meal before bed. exercise intensely before bed. practice relaxation breathing before bed. use electronics before bed.

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