Getting his nutrients, sleep, and exercise.
Answer:
You should not sell unprescribed medication to people is illegal because they could be considered drugs. It is unsafe because they do not need it, or if they did they could have their doctor prescribe it to them and they you would not need to sell it to them.
Answer:
The big thing is that, in countries with high life expectancy, their old people are more likely to feel engaged. This can be a cultural difference, or it can be geographical; old people are more likely to do things if they can physically get around.
hope it helps