The thyroid is a butterfly-shaped gland that sits in the front of the neck. It produces hormones that are essential for heart rate, digestion, mood, and other functions crucial to human health.

Thyroid level tests, including thyroid-stimulating hormone (TSH) and free T4, help diagnose underactive or overactive thyroid. Doctors may also check free T3, calcitonin, thyroglobulin, or thyroid ...

An underactive thyroid can trigger everything from weight gain to thinning hair to plummeting energy levels. Fortunately, giving the small, butterfly-shaped gland in the front of the neck some ...

Osteoporosis and thyroid disease can occur together, in part because of how important thyroid hormones are to your bone density and structure. Osteoporosis is a bone disease that affects bone mineral ...