There are people who actually need those medicine, and there are people who are convinced by advertising that they need it ( but don't really) That's just the way of the company trying to get money
have to remember that America has a huge population aswell, therefore, of course there is going to be a huge portion actually needing medicines
They seem to have a medication for everything these days. But whatever just happened to eating right, exercising regularly and then in the short term and long term, you probably won't need half the amount of pills that some people have to take. heck, they even have pills for diets.