| A | B |
| commitment | pledge or promise |
| individual sports | activities you can take part in by yourself or with a friend |
| team sports | organized physical activities with specific rules, played by groups |
| competition | rivalry between 2 or more individuals trying to reach the same goal |
| dehydration | excessive loss of water from the body |
| anabolic steroids | synthetic compounds that cause muscle tissue to develop at an abnormally high rate |
| conditioning | training to get into shape |
| cross-training | fitness program that includes a variety of physical activities to promote balanced fitness |
| overtraining | exercising too hard, or too often, without enough rest in between |
| overcommitment | obligating yourself to more people or projects than you have the time or energy to follow through with |
| burnout | sense of exhaustion caused by exerting too much energy to too long a time |