This woman has thinning eyebrows and worries that it may be a sign of hyperthyroidism. She feels fine and wants to avoid thyroxin. Can readers help? There's a natural alternative to Thyroxine called Armour Thyroid, though it can be problematic finding a doctor who will prescribe it. Get in touch with Thyroid UK; they will be able to help. A suggested product is Thyrotropin, but stay away from standard medications as you will forever be dependent on them. You can heal the natural way, but it will take a little longer - be patient. Try the book, "The Great Thyroid Scandal and How to Survive It" by Dr. Barry Durant-Peatfield. Certain sea vegetables can help (kelp, nori). Avoid microwave ovens and other unnecessary sources of EMF radiation. For many years, "mainstream" dieticians stressed extreme salt restriction, and this actually created more cases of thyroid dysfunction - so moderation is the key. For growing more hair, vitamin E and silica are helpful nutrients. And a strange remedy (take this with a grain of salt): saliva (that of the dog variety is being seriously studied now) could also restore those flirty eyebrows!