I'm not the one with cancer or treatment, I'm just losing hair. And i dont think that it is a trait in my family from either side. One of my cousin's hair is almost completely gone and he is in his late 20s. That shouldnt have anything to do with me as his father who is unrelated to me or my family in any way. Thanks for the advice though. and as a side note, all of the people in my family from my great grandparents on both sides down to me all have died or still have a full head of hair late into their 80s the only exception is my dad's parents who have lost hair due to cancer treatment and his mother who's hair never grew back from the treatment of her breast cancer, and some doctor suggested that her heart problems which took her life about 3ish years ago also played a factor. Whether thats true or not i do not know, just throwing that out there.