It's not about curing; it's about preventing and making smart choices before you get diseases. Prevention is the best cure to a problem. Cancer can be prevented in most cases, I feel. Eating healthy and getting your nutrition naturally can help chemical inbalances, I am pretty sure. That should be focused on first before considering medication. After all, vitamins are protiens that make your body produce the chemicals it needs and regulates normal function and it is much better to get it out of real food instead of tablets that they sell that aren't as good as eating real fruits and veggies. I feel that oral medication should be a last resort. Things don't just happen from nothing. Also, normal is relative, unless you mean normal bodily functions and health.
Medicine when having a cold can surpress symptoms, making your body not able to rid itself of the infection as easily. It isn't good to alter your body to not cough and sneeze when you are sick. So in half of the cases, medicine is not needed and isn't good. Only sometimes.
Funny that I never take medication or vitamins and I am so healthy just with lifestyle choices and knowledge, even more so than many kids half my age. A 26 year old healthier than many 13 years olds and it is strange that it seems my health is getting even better as I get older. I am very flexible with my body and I'm told that many people cannot do what I can do with my body. It is sad many people rely on meds and not making lifestyle choices. It would save a lot of pain and money. A lot of people also die younger because of bad chemicals and bad choices. Maybe they think as long as they have medicine, they don't have to take care of themselves? Any addiction is a sign of weakness. I have a tendency to make myself tough certain things out and deal with certain pain. Keep myself strong as long as I know not to push too hard.
I stay away from second hand smoke, aspertame, Splenda, phospheric acid in pop most of the time (almost never drink pop these days), and try to get a lot of fresh air by keeping a window or door cracked if I feel it needed. Even hair dye, make-up, and certain products containing triclosin are no-no's and air fresheners can be bad for you to breath. I use regular Crest toothpaste and not the tartar control that can damage the roots or the artificial whiteners that damage enamel. I do eat junk sometimes, but certain junk I stay away from and only 30% of my diet would be junk while the average person here would have 80% of their diet being junk and too much fried food and not enough white meats and veggies and fruits.
I'm not going to say that they purposely make medicine hurt others, but I will go as far as to be realistic and say that most of them probably don't care and they want your money. Being too trusting is not realistic.