I think is True! Because concussions it have only a short term impact from the brain.
The answer to the question is D
A. A warm-up
It prevents muscle injuries and increases blood flow to the muscles
1. eating healthier or limits at least 2. personally id say to become stronger and work out 5 days a week 3. excerise it would be more effective 4. jogging, swimming, dancing 5. training with someone would be a great help and you can learn alot from them to become more successful