| A | B |
|---|
| physical fitness | using your body to work, exercise, and play without getting tired quickly |
| posture | the way you carry your body sitting or standing |
| osteoporosis | bones lose calcium and are weak/break easily |
| aerobic exercise | helps the heart become stronger; uses oxygen |
| endurance | doing activities/exercise for LONG periods of time |
| perspire | when your body SWEATS |
| cardiovascular system | heart, blood vessels, blood; brings oxygen to all parts of body |
| flexibilty | stretching your body in many directions |
| workout | a group of exercises that makes the heart and muscles stronger |
| warm-up | prepares your body BEFORE exercise |
| cool-down | relaxes your body AFTER exercising |
