What is your thyroid, anyway? The thyroid is a pretty important gland — it influences metabolism. That means your thyroid is in charge of calorie burning, your heartbeat, and even your breath. Hypothyroidism — when your thyroid is underactive — is the most common thyroid disorder. Millions of people may have undiagnosed thyroid disease, according to experts at the New York Thyroid Center at Columbia University. If your thyroid is underactive, your body produces more thyroid stimulating hormone (TSH) in an attempt to make your thyroid work properly. A blood test can measure the levels of TSH in your body … Continue reading →