Family history has been known to increase a child's risk of being allergy-prone, but a new study suggests that specific allergic triggers may be the same for kids as for their parents. Researchers in Detroit studied 316 teenagers and their parents. They found that teens whose parents were allergic to one of six triggers such as dogs, cats, grass, and ragweed, were two to three times more likely to be allergic to the same thing. Experts say this may help parents be able to predict whether their...