Health & Medicine

  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.

    By Damaris Christensen
  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.

    By Damaris Christensen
  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.

    By Damaris Christensen
  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.

    By Damaris Christensen
  5. Health & Medicine

    Does vitamin A aid learning?

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

    By John Travis
  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.

    By John Travis
  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.

    By John Travis
  8. Health & Medicine

    New sources and uses for stem cells

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

    By John Travis
  9. 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.

    By Nathan Seppa
  10. Health & Medicine

    Is Vitamin D Fattening?

    People who don't consume enough calcium may find vitamin D sabotages their weight-control efforts by promoting fat gain.

    By Janet Raloff
  11. Health & Medicine

    Dormant Cancer: Lack of a protein sends tumor cells to bed

    Excess amounts of a protein called Myc triggers cancer in mice, but ratcheting back this supply sends the malignant cells into dormancy.

    By Nathan Seppa
  12. Health & Medicine

    Fat Fuels PCB Damage: Diet influences toxic effects leading to heart disease

    Certain types of dietary fats can magnify PCB damage to artery cells in a way that sets the stage for cardiovascular disease.

    By Diana Parsell