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Your search has returned 58 articles:
  • News

    Obesity messes with the brain

    Obesity subtly diminishes memory and other features of thinking and reasoning even among seemingly healthy people, an international team of scientists reports. At least some of these impairments appear reversible through weight loss. Researchers also report one likely mechanism for those cognitive deficits: damage to the wiring that links the brain’s information-processing regions.

    A...

    03/25/2011 - 12:00 Nutrition, Body & Brain
  • News

    Role Change: Mast cells show an anti-inflammatory side

    As anyone who has reacted to poison ivy can attest, the plant can induce maddeningly itchy skin. Researchers have now found that a cell once thought to be one of the chief perpetrators of this immune overreaction may actually keep the reaction from getting out of hand.

    Mast cells make proteins that contribute to the inflammation that characterizes allergic reactions. The cells...

    09/05/2007 - 09:17 Other
  • News

    Universities seek armchair astronomers

    Nonscientists and researchers alike have a chance to see something no one else ever has—a few of the million far-off galaxies that the Sloan Digital Sky Survey has recently photographed. The price of admission: People viewing the new images online must do a little work for the astronomers in charge, classifying individual galaxies as either spiral armed or elliptical collections of stars....

    07/23/2007 - 14:59 Humans & Society
  • News

    Slimming on oolong

    Without skimping on portions, rats eating diets including oolong tea gain less weight than those dining teafree, a new study finds. The tea apparently impairs the body's ability to absorb fat.

    The finding supports a weight-control strategy—oolong consumption—advocated by practitioners of traditional Chinese medicine, note Lauren E. Budd and her colleagues at the University of California...

    05/15/2007 - 15:09 Nutrition
  • News

    Gene dispensers

    From Chicago, at the American Chemical Society Meeting

    Researchers have developed a new means for transferring genes to treat diseases. The gene therapy method relies on a nanoscale architecture with many alternating layers of polyester and DNA. Once this material is inside the body, water degrades the polyester layer by layer, for a slow, controlled release of genetic material to...

    04/10/2007 - 15:16 Chemistry
  • Feature

    Herbal Herbicides

    Certain plants are picky about the company they keep. Once established, walnuts and some sandy shrubs, for instance, create a virtually barren border of ground around them. Many other plants aren't quite so antisocial. They permit numerous species into their neighborhoods, while barring a few plant types.

    Chemical defenses play a major role in...

    03/13/2007 - 10:44 Agriculture
  • Food for Thought

    Juice May Slow Prostate Cancer Growth (with recipe)

    Prostate cancer will claim the lives of an estimated 30,000 men in the United States this year. The second leading cause of cancer death in men, its incidence climbs with age. In Western countries, the disease is reaching nearly epidemic proportions among the elderly. However, the cancer can grow so slowly that many men with prostate cancer will die of something else first.

    ...
    08/10/2006 - 13:46 Nutrition
  • News

    Fish as Farmers: Reef residents tend an algal crop

    A damselfish cultivates underwater gardens of an algal species that researchers haven't found growing on its own.

    The special alga could be the fishy version of people's domesticated crops, says Hiroki Hata of Kyoto University in Japan. Growth tests of the alga, surveys of its distribution, and genetic analyses support that idea, he and Makoto Kato say in an upcoming Biology...

    08/09/2006 - 12:05 Ecology
  • News

    Social jet lag: Need a smoke?

    From Munich, at the Euroscience Open Forum meeting

    People who have a hard time waking in the morning because their bodies' internal clocks are out of sync with their sleep schedules are said to have "social jet lag." Researchers in Europe have determined that the phenomenon strongly correlates with smoking.

    Battling one's biological clock can leave people weary in the same way as...

    08/01/2006 - 12:19 Other
  • Food for Thought

    Fruity Relief for Weekend Warriors

    After 2 years of planning, you're finally able to afford a long weekend off for that ski trip to Aspen. The first day out, you put in 5 or 6 hours working your way down the slopes. You had planned to do the same thing each of the next 2 days—until you awake feeling sore from head to toe. The next day you feel even worse, so you settle for spending the rest of your trip in the lodge, sipping...

    06/29/2006 - 12:26 Nutrition