What Causes Low Thyroid Levels?

What Causes Low Thyroid Levels

It is known as hypothyroidism when the thyroid does not produce and release enough thyroid hormone into your bloodstream. The result of low thyroid levels is a slower metabolism. Hypothyroidism, or an underactive thyroid, can make you feel exhausted, put on weight, and have trouble handling cold weather. What causes low thyroid levels or hypothyroidism? […]