Question

Which is a way that physical activity benefits your cardiovascular system?
a
stimulates your body to produce chemicals called endorphins
b
causes your lungs to work more efficiently
c
reduces the risk of developing fragile bones as you age
d
strengthens the heart muscle so that it pumps blood more efficiently

Answers

GPT-4o mini
The correct answer is:

d) strengthens the heart muscle so that it pumps blood more efficiently.

Physical activity helps strengthen the heart muscle, allowing it to pump blood more effectively throughout the body, which benefits the cardiovascular system.

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