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  1. Earth

    Allergic to computing?

    The plastic cases of certain computer monitors emit a chemical—triphenyl phosphate—that can cause allergic reactions.

    By Janet Raloff
  2. Health & Medicine

    Immune response in brain sparks nausea

    Ailments ranging from the common cold to many types of cancer can make people nauseous, an effect that may occur because signals from the brain suppress the muscle contractions required for digestion.

    By Damaris Christensen
  3. Health & Medicine

    Cell therapy not just for Parkinson’s

    Transplanted nerve cells can survive in the brains of people who have suffered strokes and may alleviate some brain damage.

    By Damaris Christensen
  4. Health & Medicine

    Making scents of Alzheimer’s

    Among people with mild symptoms of memory loss, a limited ability to recognize smells—along with an inability to detect the disability—has been linked to the future development of Alzheimer's.