whitney bowe is here to talk about this. now know the color of your skin can also put you at risk. there is a recent study. it showed african-americans and hispanics are at increased risk of developing it and other things that can put you at risk, if you have a family history, blood relative. if you personally have asthma, eczema or a thyroid condition, all can increase your risk. >> we hear about stress. is that a factor? >> stress by itself is not enough to cause the disease but can trigger a flare in people who already have it. >> is there anything you can do? any cure or anything like that? >> unfortunately there is no cure. there are treatment as valuable if you opt to treat. you don't have to treat. that's an option too. that's okay. for my patients who want to do something, one of the most effective things i do for adults is i'll inject cortisone right into the bald patches. >> what does that do? >> calms down the immune system and lets the hair grow back. it's an autoimmune disease so it's like your body is attacking