Two of the most common non-hereditary causes of hair loss are low thyroid function and iron deficiency. Both are relatively common, especially in women. And although they are two completely different conditions, they share some of the same symptoms. In addition to hair loss, fatigue and cold hands and feet can be signs of both low thyroid and iron deficiency. These conditions are readily diagnosed with a simple blood test. They can be easily corrected, either with replacement thyroid hormones or iron supplements. https://www.eturbonews.com/1512585/hair-revital-x-customer-reviews-warning-must-read-this/