I feel like this question is very troll but my guess is for less weight to hold them down....
Answer:
More oxygen is also going to the muscles. This means the heart beats fewer times per minute than it would in a nonathlete. However, an athlete's heart rate may go up to 180 bpm to 200 bpm during exercise. Resting heart rates vary for everyone, including athletes.
Explanation:
Answer:
Yes it's right I am here to help you
D. Controls your thoughts.