Hypothyroidism vs Hyperthyroidism: What’s the Difference? Hypothyroidism means an underactive thyroid and generally slows down body processes. Hyperthyroidism means an overactive thyroid and generally speeds them up. Blood tests such as TSH, T3 and T4 help evaluate thyroid function. What Is the Thyroid? The thyroid is a small, butterfly-shaped gland located at the front of […]
