The thyroid is the engine of your body, says Dr. Jennifer Mammen, an endocrinologist and assistant professor of medicine at Johns Hopkins. While your fitness won't affect how well that engine is or ...

Medically reviewed by Kelly Wood, MD Key Takeaways Hyperthyroidism is when the thyroid makes too much hormone, affecting ...

What does your thyroid do? Your thyroid gland influences almost all metabolic processes in your body through the hormones it makes. Your thyroid gland is part of your endocrine system. When your ...

Thyroid function is important for your body as it can affect your physical energy, temperature, weight, and mood. Depending on how little or how much thyroid hormone (more on this later) is being ...

What Does the Thyroid Gland Do? The thyroid is a butterfly-shaped gland located at the front of your neck. It produces hormones that help regulate many of your body’s functions: Thyroid nodules often ...

It’s estimated that nearly 5% of Americans above the age of 12 live with hypothyroidism, a condition that occurs when the body experiences a deficit of thyroid hormone. The thyroid gland, located in ...

You’re fiddling with a necklace when suddenly you notice a lump near the base of your throat. Or perhaps you’re yawning and a friend spots a swollen spot on your neck. What gives? Although they can be ...

Hypothyroidism is sometimes referred to as "underactive thyroid." Your thyroid is a small gland at the base of your neck that has a big impact on how your body works. The hormones your thyroid ...

Symptoms of hypothyroidism may resemble seasonal allergies, so some people may mistake the two. Additionally, some studies suggest a link between hypothyroidism and allergies. However, evidence ...