You probably have taken herbs before as a replacement for medication. Sometimes this can be effective. There is excellent research supporting the use of St. John’s wort for depression, feverfew and butterbur for the reduction of migraine headaches, saw palmetto for an enlarged prostate… these are just a few examples. However, herbs are most effective when they are not simply used in place of drugs. Their true power is when they are used to change the body’s system, unblocking impediments that stop it from functioning properly.