In the nervous system which works on various organs in the body that control blood pressure , heart rate , liver functions etc
Stress makes you nervous almost and makes our heart go faster and your brain think??? it could give you a heart attack?? i wouldn't trust this lol
Answer:
b) Cardio respiratory
Explanation:
Just as exercise strengthens other muscles in your body, it helps your heart muscle become more efficient and better able to pump blood throughout your body. This means that the heart pushes out more blood with each beat, allowing it to beat slower and keep your blood pressure under control. Aerobic exercise boosts your good cholesterol (HDL), and lowers your bad cholesterol (LDL).
Hope this helps ya! Best of luck <3