This depends upon the specific situation. As an example: Any doctor who tells you that your cholesterol should be as low as possible is obviously clueless. The brain itself is made of cholesterol as are your steroid hormones like Cortisol, Testosterone, Estrogen, etc. It is a vital part of our bodies that drug companies have convinced major medicine as bad. This does not mean you ignore very high cholesterol however. There is definitely a place for drugs, however they are extremely over-prescribed and end up causing many more problems in so many cases. Drugs stop function in most cases, we attempt to correct or enhance function naturally.