Answer:
Human subject research is systematic, scientific investigation that can be either interventional (a "trial") or observational (no "test and Human subject research can be either medical (clinical) research or non-medical (e.g., social science) research.
Drugs and supplements are similar in that both have an effect on the nervous system and that both are psychoactive substances. They are different in that drugs are often necessary to help someone overcome an illness, while supplements are optional and not necessary.
i beleive the answer is: d. Working out in the morning is more effective than working out at night.
The main reason for the myth is the fact that we burn more calories early in the morning(before we consume any breakfast).
Even though this might be true, What dispelled this perception is the fact that our body typically burn would burn more calories during sleep when we work out at night. So the the overall calorie burned will pretty much the same.
