I don't get the point of cancer research. Isn't it just our diets and lifestyles?

Not true. Cancer cells have been scientifically proven to be hereditary. Yes, smoking increases risk of lung, lip, and certain cancers, but there are many forms of cancer, so ongoing research is crucial. Cetain types of cancers can rump rampid in families of otherwise healthy, non drug/tobacco users. Yes, if doctors can get a better idea of exactly "what makes cancer tick", they may be able to better prevent it in the future.