Answer:
By working at a job and saving money .
Explanation:
By he NIH trying a new drug to help reduce pain associated with sickle-cell anemia, it's an example of an "experiment".
An experiment involves a hypothesis (an educated guess as to what's going to happen) and trying out the hypothesis and finding the solution.
Well for one it helps with where people are allowed to smoke. A law has passed about people smoking in restaurants. It’s no longer allowed.
