Thyroid Health Affects Overall Wellness The thyroid is a small gland located at the front of the neck, but it has a powerful influence on nearly every system in the body. It produces hormones, primarily T3 and T4, that regulate how the body uses energy. When the thyroid is healthy and functioning properly, these hormones help maintain balance, stability, and overall well-being. One of the most important roles of the thyroid is to control metabolism. Thyroid hormones determine how efficiently the body converts food into energy. When thyroid function is balanced, energy levels remain steady, and the body can maintain a healthy weight. Poor thyroid function, however, may contribute to fatigue, sluggishness, or unexpected weight changes. Thyroid health also has a strong impact on mental and emotional wellness. Balanced thyroid hormones support brain function, concentration, memory, and mood stability. When the thyroid is under stress or out of balance, people may experience brain fo...