Compliments of YourSpine.com: It is estimated that between 1 percent and 4 percent of adults have moderate to severe hypothyroidism, and 10 percent to 12 percent have mild or subclinical hypothyroidism. Symptoms of hypothyroidism (underactive thyroid) include: fatigue, weakness, cold hands and feet, low body temperature, dry sparse hair, dry skin, weight gain despite loss […]