Answer:
Hyperbole would be the rhetorical device used in the sentence.
Explanation:
You would be exagherating, saying something is "1 Billion" times better than something.
Warm ups reduce the likelihood of joint and muscle injury as it begins to get the cardiovascular system working and pumps blood throughout the body. Cool downs are necessary because they assist in returning the body to its natural state, they reduce lactic acid levels and gradually bring the heart rate back down.
That sounds like Pneumonia....
-I am not a medically trained professional, nor have I ever had the bacteria.
-If this is YOUR symptoms, I would recommend you seek some form of medical attention.