1. Chemistry

    Explainer: What are oxidants and antioxidants?

    Certain chemicals, including many in foods, fight chemical reactions that could harm cells in the body and in wildlife.

  2. Health & Medicine

    How super are superfruits?

    Fruits are good for you, but some advertisements claim that certain fruits are especially nutritious. Is there science to support the superfruit hype?

  3. Health & Medicine

    Music in the brain

    Scientists have uncovered a pattern of brain activity that may tune up musical improvisation.

  4. Humans

    Settling the Americas

    Scientists have a new theory about when and how people first migrated from Asia to the New World.

  5. Health & Medicine

    Baby number whizzes

    The brains of very young babies have a sense of numbers.

  6. Health & Medicine

    Healing honey

    Cough medicines don't work and they can have unpleasant side effects. Doctors are starting to recommend honey instead.

  7. Health & Medicine

    The essence of celery

    Tasteless compounds in celery give the vegetable essential flavoring powers.

  8. Health & Medicine

    Heart revival

    Scientists have found a way to transform a rat's dead heart into a living one.

  9. Health & Medicine

    Memory by hypnosis

    Scientists are using hypnosis to better understand how the brain remembers—or doesn't.

  10. Health & Medicine

    Babies prove sound learners

    Scientists are gaining new insights into why babies are so good at learning languages.

  11. Health & Medicine

    Sweeeet! The skinny on sugar substitutes

    Millions of people use artificial sweeteners, but are they safe?

  12. Health & Medicine

    Heavy sleep

    To maintain a healthy weight, kids need to get enough sleep.