D, Trying a new exercise can cause your body to work the wrong way. Exercising too hard can overwhelm your muscles and strain them. Exercising too long can overwork muscles.
FOR EXAMPLE:
Let's say you've been taking melatonin every single night to help you sleep. After a while, you may notice that it begins to take more and more melatonin for it to work like it did the first night you took it. You were taking one per night, but you end up taking 3 per night to get the same effect because your body has resistant to the drug.
ANSWER:
After a while of taking antibiotics, microorganisms in your body may become resistant to the antibiotics (which is potentially dangerous). This occurs when bacteria change to reduce the effects of a drug.
Brain power is the correct answer.
Marijuana can trigger increased sensitivity to sounds, tastes, smells, and colors.
This warning was most likely issued to prevent people from bringing SARS to the USA when they come back from visiting the countries. So the answer is pretty much to stop the spread
