In this episode we talk about the five main causes of hair loss. We talk about sluggish thyroid, high cortisol, low stomach acid and digestive enzymes, low protein intake, and low iron. Hair is an important biomarker. In order to have healthy hair, you need healthy thyroid, good digestion, adequate protein and iron intake. If any of these are missing or not working properly, then you are at risk for thinning or losing your hair.