Our daughter is 16 and she is extremely upset that she is losing her hair and it is thinning out. (She says for the past 2 years). I have read stress causes this in teenagers. I took her to a dermatologist and she ran all tests that came back negative. In all honesty, it is thinning and very long. She is a competitive athlete and changed her diet too in the past 10 months. Fruits/veggies healthy foods. She had surgery late January at Children s Hospital in Boston. She is fine now, but the past 2 years we have learned of many internal birth defects. She does take Solodyn for acne, but that is all for medicines. What else can I do for her?