The immediate effects of exercise are on the neurotransmitters. It causes complex signals to pass through the neurons in the brain.
Your heart or lungs may not be strong enough for surgery, your body might not be able to tolerate anesthesia, and the surgery may do harm to your body instead of it doing something good.
<span>A heart attack happens when one or more of your coronary arteries become blocked.</span>
The answer to the blank in the above statement is 30%.
