Mooventhan, A, and Nivethitha, L. «Scientific Evidence - Based Effects of Hydrotherapy on Various Systems of the Body.» (thebettyrocker.com)
Thyroid hormones play many roles in the body, including regulating metabolic rate (how many calories you burn during the day) and growth in various systems of the body (like bones). (dailyburn.com)
A blood chemistry analysis (i.e.: a blood test) provides key information about one's health within various systems of the body, and as a whole. (thedr.com)