Simplify the following text for a Grade 13 native English-speaking person.
Original: Physical fitness comprises two related concepts : general fitness ( a state of health and well-being ) and specific fitness ( a task-oriented definition based on the ability to perform specific aspects of sports or occupations ) .
Simplified: Physical fitness has two components : general fitness ( a state of health and well-being ) and specific fitness ( the ability to perform specific aspects of sports or occupations ) .