well- medicines can b divided into 3 groups: 1-medicines that do cure like that for treating cancer ("chemotherapy" & "yes it has side effects" also "yes it won't work all the time as it depends on the stage of cancer that's why early discovery is crucial"), 2-medicines that do a function that the body stopped doing like that for diabetes ("insulin injections control the amount of sugar n the body when the pancreas is defective & can't produce enough insulin"), 3-medicines that hide the symptoms like that for flue & pain-killers. the 3rd has the largest share because it's easier to make & it's "commercial" but still it's legit, there is a group that isn't a medicine rather it's a pseudo/fake-medicine ("they literally don't try to solve any problem nor hide any & n many cases they r rather harmful") usually n the fields of "skin care" "hair care" "weight loss" this group isn't medicine rather it's "scam". unfortunately the health care sector is becoming more "commercial" n many parts of the world where only those with much money can b treated while those with less money r left to die as n the case of cancer.
"I’ve always had a keen interest in health and what makes one person get sick while another doesn’t" i've also always had that question n my mind & i had the same answer "nutrition and toxicity" but + "genetics", "nutrition and toxicity r the only answers that make sense for answering questions like the crazy increase n diabetes & cancer incidents compared to the past "even not the far past like 80s". have a great day