Thyroid hormones control metabolism, the rate at which the body uses energy. Low levels of thyroid hormones can lead to decreased metabolism, which can make a person feel sluggish and tired.

Here are the top 10 warning signs of low thyroid hormone levels:.

1. Fatigue:

One of the most common signs of low thyroid hormone levels is fatigue. People with low thyroid hormone levels may feel tired even after getting enough sleep and may struggle to get through the day without a nap.

2. Weight Gain:

Weight gain is another common sign of low thyroid hormone levels. Decreased metabolism can lead to weight gain even when calorie intake is low.

3. Constipation:

Low thyroid hormone levels can slow down digestive tract motility, leading to constipation.

4. Hair loss:

Thyroid hormones play a role in regulating hair growth. Low thyroid hormone levels can lead to hair loss or thinning hair.

5. Dry Skin:

Thyroid hormones also help to regulate skin hydration. Low thyroid hormone levels can lead to dry, flaky skin.

6. Cold Intolerance:

Thyroid hormones help to regulate body temperature. Low thyroid hormone levels can make a person feel cold even in normal temperatures.

7. Muscle Weakness:

Thyroid hormones are needed for proper muscle function. Low thyroid hormone levels can lead to muscle weakness, cramps, and aches.

8. Depression:

Low thyroid hormone levels can affect the levels of serotonin in the brain, leading to depression and anxiety.

9. Menstrual Irregularities:

Thyroid hormones play a role in regulating menstrual cycles. Women with low thyroid hormone levels may experience irregular periods or heavy bleeding.