News

  1. Earth

    Blood points to pollution’s heart risks

    As airborne concentrations of fine dust particles climb, so do three blood factors that increase an individual's heart attack risk.

    By Janet Raloff
  2. Health & Medicine

    Vitamin E benefits cattle, too

    Vitamin E aids immune system function and prevents growth declines in cattle, offering an alternative to potentially dangerous use of low-dose antibiotics.

    By Damaris Christensen
  3. Health & Medicine

    Insight into preemies’ blindness

    Lack of a growth factor called IGF-1 has been implicated as a trigger for a disease that can cause vision problems, including blindness, in premature babies.

    By Damaris Christensen
  4. Health & Medicine

    Alzheimer’s damage might start off early

    Copper and free radicals may initiate the brain damage of Alzheimer's disease long before its hallmark protein plaques have formed.