Earlier this week, my colleague Dr. Gorski explored a common theme in alternative medicine: the idea that all disease is preventable. This implies that all disease has a discrete cause and that individual behavior can mitigate this cause.
If biology worked this way, my job as an internist would be very different. Many people would love to believe that life is this predictable, and that they have that much control over their health, but they don’t. Most disease represents the interaction of environment and genetics, and you can’t change your genes (with a few exceptions, of course).
It’s natural to want to be able to exert an impossible level of control over your health, but when unscrupulous charlatans (redundant redundancy alert!) play on these beliefs and fears, they can cause, rather than prevent problems.