How do I know all of this? Because I lived it. I looked at multiple potential culprits in my quest to end my hair loss and thinning. I looked at my triggers, my iron, my thyroid, my adrenals, my hormones, and my scalp's health. It was a frustrating journey until I finally found something that helped quite a bit. You can read a very personal story on my blog at http://stop-hair-loss-in-women.com/.