I too am 49 years old, and experience hair loss from Sept. to Jan. When the leaves start to fall, so does my hair. My hair was very thick at one time. I went through a very early menopause (40) and this is when I started noticing the loss. It has been 9 years and I have slowed down the loss with estrogen to a point. My mother and grandmother also had this and were eventually wearing wigs. Mine also is around the crown of my head, and my forhead gets bigger every year. Last year when we had a very long, warm transition to winter, with little snow, I lost very little. This year seams in contrast terrible. The drain is full every night. I live on the east coast, I take excellent care of myself. I have worked out for the last 25 years, take vitamins, and eat very well. I found this site by accident by putting "hair loss" into a web search. I was looking for the shampoo I usually buy called "More Hair". I am thrilled that I can get some feedback on how others handle it. I think it is very interesting that others have the loss in summer months. Sorry about the length of this reply.