Which of the following is not an effect of doing aerobic exercise? 1.Your heart becomes stronger. 2.Your heart pumps more blood with each contraction. 3.Your lungs process less air with more effort. 4.Your blood vessels carry more blood. 5.You sleep better.

Which of the following is not an effect of doing aerobic exercise?
1.Your heart becomes stronger.
2.Your heart pumps more blood with each contraction.
3.Your lungs process less air with more effort.
4.Your blood vessels carry more blood.
5.You sleep better.

I think the answer is 3.