News

  1. Health & Medicine

    Teasing out tea’s heart-healthy effect

    Drinking black tea makes a person's blood vessels dilate more easily, which may explain why drinking tea can protect against heart disease.

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  2. Health & Medicine

    Big meals boost heart attack risk

    Unusually heavy meals boost a person's chance of developing a heart attack, at least among those people who already have risk factors for heart disease.

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  3. Health & Medicine

    It’s that time. . .for heart attacks?

    A small study of young women already at high risk of having a heart attack suggests that heart attacks are most frequent when estrogen levels are low, soon after a woman's period begins.

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  4. Health & Medicine

    New role for cholesterol-lowering drugs

    Drugs that lower cholesterol benefit patients who have just had a heart attack or chest pains, regardless of the patient's initial cholesterol levels.

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  5. Health & Medicine

    Does vitamin A aid learning?

    A lack of Vitamin A may cause learning and memory problems, albeit potentially reversible ones.

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  6. Health & Medicine

    Old antibiotic takes on Alzheimer’s

    An antibiotic that binds copper and zinc may prevent brain deposits that cause Alzheimer's disease.

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  7. Health & Medicine

    Pesticide tied to Parkinson’s disease

    Rodents exposed to massive amounts of the pesticide rotenone develop a condition similar to Parkinson's disease.

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  8. Health & Medicine

    New sources and uses for stem cells

    Human skin and scalp tissue may provide a source of neural stem cells.

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  9. Physics

    An electron ruler gauges crystal flaws

    Electrons ricocheting through a crystal now make it possible for scientists to discern shifts in crystal lattices as small as a hundredth of an atom's width.

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  10. Ecosystems

    Fly may be depleting U.S. giant silk moths

    A parasitic fly introduced to fight gypsy moths starting in 1906 may be an overlooked factor in the declines of giant silk moths.

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  11. Health & Medicine

    Vaccine protects monkeys from Ebola virus

    A combination of a DNA vaccine and a vaccine based on a genetically modified common cold virus enables monkeys to resist Ebola virus, the first evidence that an Ebola vaccine works in primates.

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  12. Certain memories may rest on a good sleep

    People who practice a task that demands quick visual processing perform it better on ensuing trials if they are first allowed to get some sleep.

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