| A | B |
| Yoga | Best way to improve felxibility |
| Physical Activity | Any movement that causes your body to use energy |
| Cardiorespiratory Endurance | Ability of heart, lungs, blood vessels to send oxygen to tissues during activity |
| Physical Fitness | Ability to carry out daily tasks easily and have enough energy to meet unexpected demands |
| Walking | One of the best exercises for your health |
| Cardiovascular System | Physical health strengthens the heart |
| Anaerobic Exercise | Short bursts of intense activity that doesn't use oxygen |
| Respiratory System | Physical fitness helps you breathe in larger amounts of air |
| Aerobic Exercise | Uses large muscle groups and benefits cardiovascular endurance |
| Nervous System | Physical fitness benefits this system by allowing you to react quickly |
| Body Composition | Ratio of body fat to lean tissue |
| Sedentary Lifestyle | Way of life that involves little physical activity |
| Flexibility | Ability to move body parts through full range of motion |
| Diabetes | Disease preventing the body from converting food into energy |
| Muscular Endurance | Ability of muscles to perform physical tasks over time without becoming tired |
| Osteoporosis | Disease characterized by decrease in bone density |
| Metabolism | Process by which your body gets energy from food |
| Muscle Strength | Amount of force a muscle can exert |