For anyone who thinks the Mind and Body are not part of a single system. And, its a two way street. just as your Thyroid can influence your Mental State, so, too, do your Mental States influence your internal organ function, endocrine system, blood pressure, muscle tension levels, etc.
For example, you are terrified of doing poorly on your LSAT, and you get diarrhea. You are constantly in fear, and you end up with chronic constipation. One example of gazillions, it really should be obvious that pills are not any kind of long term answer.
Meditation is, though, at least in the case of the autonomic nervous system…