B13

Physical fitness is a general state of good health, usually as a result of exercise and nutrition. Physical fitness can also be described as a condition that allows us to look, feel and do our best. Being fit helps us have more energy for work or school, and enough energy to enjoy our leisure time activities.

 ACTIVE

B14

Fitness is an individual quality. It is influenced by age, sex, heredity, personal habits, exercise and eating practices.  

 PERSON

B15

You can't do anything about the first three factors. However, it is within your power to change and improve the others where needed.

 ANY

B16

The level of physical fitness can be influenced by regular, systematic exercise. How often, how long and how hard you exercise, and what kinds of exercises you do should be determined by what you are trying to get.

 SYSTEM

B17

For example, an athlete training for high-level competition

 TRAIN

B18

would follow a different program than a person whose goals are good health and active life.

 DIFFER