Extreme usage of stimulants can lead to convulsions, coma and circulatory collapse. Oa) true
Ob) false

True

Explanation:

Drugs don't do you any good, anyone that says so is misguided or an addict themselves.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.