Is hypothyroidism a dangerous (even life threatening) condition? what can happen if left untreated?

Yes: Often mild hypothyroidism, which is more common as you get older, can go unchecked for a long time--months to years. Severe hypothyroidism is another story--medically known as myxedema coma --it is a rare but life-threatening condition. Hypothyroidism is easy tested and treated, thus check with your doctor...

mild to severe: Your thyroid hormones have a profound effect on all functions in your body. Mild hypothyroid symptoms include: fatigue, sensitivity to cold, constipation, weight gain, high cholesterol, hair loss, muscle pain, depression, other hormonal problems, brain fog, edema, high blood sugar & many other symptoms. In the long term hypothyroidism can lead to cardiovascular disease, diabetes and even death.