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2. Hypothyroidism - Wikipedia

   en.wikipedia.org/wiki/Hypothyroidism

   Hypothyroidism (also called underactive thyroid, low thyroid or hypothyreosis) is a disorder of the endocrine system in which the thyroid gland does not produce enough thyroid hormones. [3] It can cause a number of symptoms, such as poor ability to tolerate cold , extreme fatigue, muscle aches , constipation , slow heart rate , depression , and ...

3. Concerned about hypothyroidism? These are the signs to look ...

   www.aol.com/concerned-hypothyroidism-signs-look...

   It’s estimated that nearly 5% of Americans above the age of 12 live with hypothyroidism, a condition that occurs when the body experiences a deficit of thyroid hormone. The thyroid gland ...

4. Common thyroid drug levothyroxine linked to bone mass loss - AOL

   www.aol.com/lifestyle/common-thyroid-drug-levo...

   Low levels of thyroid hormones can lead to symptoms including fatigue, weight gain, cold intolerance, dry, flakey skin, loss of hair and inability to concentrate. ... with a mean age of 73 ...

5. Thyroid disease - Wikipedia

   en.wikipedia.org/wiki/Thyroid_disease

   The most useful marker of thyroid gland function is serum thyroid-stimulating hormone (TSH) levels. TSH levels are determined by a classic negative feedback system in which high levels of T3 and T4 suppress the production of TSH, and low levels of T3 and T4 increase the production of TSH. TSH levels are thus often used by doctors as a screening ...

6. Euthyroid sick syndrome - Wikipedia

   en.wikipedia.org/wiki/Euthyroid_sick_syndrome

   This may be primarily via reduced levels of leptin (the satisfaction hormone). Low leptin levels can downregulate hypothalamic TRH neurons and cause a reduction in TSH. [5] [10] Ιn fasting animals, administering leptin reverses NTIS symptoms and restores thyroid hormone concentrations. [5]

7. Should You Get Your Thyroid Hormone Levels Checked? - AOL

   www.aol.com/lifestyle/thyroid-hormone-levels...

   Several mysterious symptoms—from weight changes to irritability to fatigue—can indicate the need to have your thyroid checked. Your thyroid gland controls your body’s metabolism and is one ...