QUOTE (GreenTea @ Oct 10 2008, 5:08 pm)

My hair has been getting thinner and thinner for years, and it's now getting to a stage where it looks like a disaster whatever I do with it. I'm assuming it's just a natural consequence of aging (I'm over 50 and it's all downhill from here), but it would be nice to be able to do something about it. Oddly enough, I have very strong, tough fingernails and toenails, so I guess I'm not lacking in minerals. Plenty of unwanted hair on my legs, too. How can I redirect it from my legs to my head?
I am not a doctor let alone a dermatologist, but unfortunately hair loss is not just a male problem. Women often start experience their hair becoming thinner after the age of 35. Yes, it has something to do with aging quite often (and the hormonal changes due to aging). Thyroid problems can cause hair loss, so can lack of Iron in your body and to little Zinc in your diet.
If you have been experiencing visibly thinning hair over a couple or more years and no bald spots but overall simply much thinner limp hair, it's likely "
Telogen effluvium" (just Google it, there's plenty of information on the Internet).
The sad thing is, no one can really say for sure what the causes of hair loss are, so you might have to try different things. What in most cases stops the hair loss and also triggers regrowth is Minoxidil (sold under the brand of Regaine in Germany and Rogaine in NorthAmerica). It's expensive but has a very high success rate. The downside is that once the hairloss as stopped and new hair is growing and you stop using it, hair might fall out again. There are also generic versions of it which cost about 1/2.
(Oh, I am not working for a pharma company, this is solely from my own experience and related research with this problem, which *thank Godness* seems to be resolved for now.)