Whether calculating your target heart rate, assessing your risk for a common condition, or testing your knowledge of today's health concerns, these tools help you manage your health. They are easy to use, informative, and often surprising.
The thyroid is a gland that controls key functions of your body. It is a small organ in the front of the neck. It’s shaped a bit like a butterfly. The gland makes thyroid hormones. These hormones help to maintain your body’s production of energy. This is known as your metabolism. Diseases of the thyroid gland can affect nearly every organ in your body and harm your health.