Business name: Thyroid Treatment & Medication Address: 26 Court St suite 1030 Brooklyn,NY , 11201 Phone: (347) 717-4965 Category: Medical Spa Description: The main function of the thyroid gland is to convert calories and oxygen into energy; effectively acting to regulate blood pressure, body temperature, heart rate, and metabolism. If the thyroid gland isn’t working at maximum efficiency (Hypothyroid), the body begins to slow down. Several symptoms of Hypothyroidism might include lethargy, fatigue, constipation, and intolerance to cold. An overactive thyroid also known as Hyperthyroidism results in an increased metabolism. Hyperthyroidism presents itself with symptoms of anxiety, agitation, heart palpitations, and intolerance to heat.