I'm 21 and my hair has been thinning since I was about 17/18. This is ridiculous! My mom has Androgenetic Alopecia and I believe I do too because only my crown is thinning and my temples are receding. C'mon ladies...I feel that there is something wrong with us inside. This just cannot be a genetic thing where at a certain age BAM we start losing our hair for no reason. My mom's hair started thinning around age 35. She is now in her 50's and went to the doctors for a blood test. Turns out she was seriously low on Vitamin D. She got her Vit. D levels up and her hair stopped shedding but her hairloss got to the point where it's so bad that you can see her scalp at the top so I don't know if the Vitamin D was what made her hair stop shedding or if the hair on her scalp just got to ending point of its thinning and is stablizing. I started drinking 4,000-6,000 Vitamin D a day (does is recommended by many doctors lately) and will see if my hair improves. If this does not work, I don't know what else to do!!! I drink a multiple vitamin every day and a vitamin B complex. Traditional Chinese Medicine states that kidney deficiency is the cause of crown and side thinning. Kidneys, Adrenals, and the Liver all tie in together with hairloss. The kidney has a lot to do with our hormones and SUPPOSEDLY by healing and strengthening the kidney, our hair will stop thinning. Now that I remember, when I was 17, I had my first UTI and it wouldn't go away. I kept having another UTI attack every couple months and eventually it lead to a kidney infection. Maybe that is the reason I have hair loss, bad kidneys? Also, at age 17 was when I started dieting and cut my caloric intake to 1200 a day. I did that off and on until now. Perhaps my hairloss started all because of that? Maybe my hairloss is all because of a nutritional deficiency. I read somewhere that Gardasil has caused hair loss in young women. I remember getting the series of Gardasil shots when I was 16. =/ Also, I read on another women's hair loss forum that this woman cured her hair loss by stopping eating gluten and dairy. She thought she had Androgenetic Alopecia but realized after she did this, her hair stopped shedding. UGH I'm so frustrated. I will not give up hope! I believe that this problem is internal and it is caused by something we are or are not eating or by our lifestyles!! Women's hair loss cannot just be hereditary and if it is...then there is something else that is passed on genetically that also causes hair loss with it. Whether it be celiacs or weak internal organs..whatever it is. I have been doing massive research on women's hair loss and I think the majority of us are suffering because of the same internal problem.