Uniform Hair Loss?

I am 38 and have always had thick healthy hair. Lately I've noticed that it is noticeably thinner. I can accpet that it's just age, however it's uniformly thinner over my whole head. That doesn't sound like age to me. Does anyone have any advice? Thanks!

The best advice is to see a dermatologist. They can dismiss it as age or if nessecary properly diagnois any other issue that may be causing it.