Answer:
Because they don't use a variety of muscles as much as they could by doing more sports so when they use the lesser used muscles, they could get hurt.
Explanation:
I think C, but I'm not sure. If you don't lift with proper posture then you can injure yourself.
Answer:
D
Explanation:
as you should be eating 3 meals per day, the question asks for a balanced diet not a balanced meal plan and low calorie foods will help in decreasing weight and losing unwanted calories faster