Hair strands have little “shingles” or “tiles” that can be broken off by things like blow drying, which results in thinning hair. One treatment for healthier hair could be Biotin, because it helps rebuild those “tiles.”
This is explained by Dr. Memet Oz to Diane Sawyer on ABC News. He says that by looking at the condition of someone’s hair you can immediately tell whether it’s a hormonal or thyroid problem, or if they have been exposed to toxins and chemicals.