Exposure to the sun can cause cancer
I’m pretty sure they included more than one independent variable.
The answer to this question is mass
He could make sure he exercises regularly to keep the blood flow pumping to his heart, he can eat healthy so that he does not have a lot of fat build up in his arteries and he can also stay away from smoking to keep his body functioning properly.
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Eat healthy Food. It will make everyone in my family healthy and in shape.
