Health

All Health

  • Arts-to-smarts link overblown, researchers say

    “Arts advocates need to stop making sweeping claims about the arts as a magic pill for turning students around academically,” says Lois Hetland, project manager of the largest, most comprehensive…

  • Shorter treatment as effective, less costly in preventing HIV in babies

    Of the more than 1,500 infants who get HIV from their infected mothers every day, 95 percent live in developing countries where the poverty level is high. Many mothers in…

  • Researchers identify genes that control development of fat tissues

    Until now, no one knew the specific trigger that controls the extent to which cells called preadipocytes turn into fat cells. Harvard researchers have identified the genes GATA-2 and GATA-3…

  • Identifying the source of all disease

    In a major leap toward learning the basics of human biology and what makes it go awry, Harvard researchers have built the prototype of a high-tech chip that rapidly identifies…

  • Brain found to play unexpected role in Type II diabetes

    Until now, the brain was assumed to be a side player in diabetes. “For the most part, diabetes researchers have not been looking at the brain,” said C. Ronald Kahn,…

  • Sights set on partial corneal transplants

    “We don’t have any way of curing these problems,” says Nancy Joyce, a Harvard researcher who is working on saving people’s sight when their corneas deteriorate. “The only way right…

  • Mapping the brain’s response to breathlessness

    In an experiment, healthy men were placed on ventilators, and their ability to take deep breaths was controlled. As their breathing was regulated, their brains were imaged using a PET…

  • Sharp declines in heart disease in women

    During the course of a 14-year study, female participants’ consumption of red meat dropped by nearly 40 percent, intake of trans fats dropped by more than 30 percent, and use…

  • Hypnosis found to alter the brain

    “Hypnosis has a contentious history,” notes Stephen Kosslyn, professor of psychology at Harvard and leader of a study in which people were hypnotized to see color where only shades of…

  • Tissue engineering produces an artificial gland

    Your thymus is a walnut-sized gland that sits just above your heart. The master gland of the immune system, one of the thymus’ chief functions is to produce T lymphocytes,…

  • Head lice frequently misdiagnosed

    Via an informational Website, researchers asked readers to submit samples of what they thought were head lice or louse eggs. The readers completed questionnaires that asked them their relationship to…

  • Nearly half of college students used tobacco in one-year period

    In 2000, nearly one-half of college students reported using tobacco products in the previous year. By including the use of cigars and smokeless tobacco, a study found a greater prevalence…

  • Active girls who drink colas are five times more likely to fracture bones

    In a study, more than 460 ninth- and tenth-grade girls reported their activity levels, soda drinking habits, and history of bone fractures. A researcher found that drinking any type of…

  • Cognitive testing of elderly could help detect medical problems

    Shari Bassuk, research fellow in the Department of Health and Social Behavior at the Harvard School of Public Health, and her colleagues have found that even mild impairments in areas…

  • Physically active women reduce risk of stroke

    A Harvard study followed 72,488 nurses for eight years and concluded that the more a woman exercises, the lower the odds she will suffer a stroke. Two large Harvard studies…

  • New treatment effective against psoriasis

    Psoriasis is a skin disease that disfigures people’s bodies with scaly red plaques. Thirteen patients had portions of their psoriasis patches irradiated with intense beams of ultraviolet laser light at…

  • Biological clock genes identified

    “We’ve identified the molecules that we believe form the essential gears of the 24-hour clock,” says researcher Steven Reppert, who is a professor of pediatrics at Harvard-affiliated Massachusetts General Hospital.…

  • Study points to more targeted use of Ritalin

    An area known as the putamen, located deep in the center of the brain, helps to control movement and attention. Harvard researchers believe that the putamen is involved in Attention…

  • Researchers face up to liars

    What category of people do you think would be best at detecting lies? It’s not Secret Service agents, or psychiatrists, or even mothers. Investigators working at Massachusetts General Hospital in…

  • Public health researchers battle West Nile virus

    West Nile encephalitis infection, carried by mosquitoes, can cause the brain to swell but rarely leads to death. Many people carry the virus with mild if any symptoms, but people…

  • Potent cancer drugs made from sea squirts

    In May 2000, researchers at Harvard University announced that they had succeeded in synthesizing a complex anti-tumor drug that is more powerful than any other known drug. The drug, ecteinascidin,…

  • Birth of new brain cells induced in birds

    Stem cells that are naturally present in the brains of finches were induced to replace lost cells and restore the birds’ ability to sing their distinctive song. “Our results represent…

  • Understanding how fish swim

    The pattern is hard to see at first because the movement seems to happen in the blink of an eye.

  • Unlocking the mystery of artistic taste

    “Unlike infants, who share innate preferences about shapes and colors, preschoolers already differ in their artistic tastes,” says Kim Sheridan, a doctoral student at the Harvard Graduate School of Education.…

  • Treating advanced lung cancer with light

    Photodynamic, or light, therapy was approved by the Food and Drug Administration in December 1998. The FDA has also approved using lasers for treatment of advanced stages of cancer of…

  • Shadow proteins in thymus may explain how immune system gets to know its own body

    Researchers recently identified a protein that appears to work by turning on in the thymus, which lies beneath the breast bone, the production of a wide array of proteins from…

  • Researchers switch cancer off and on in mice

    An antibiotic added to the drinking water of mice stops the progress of leukemia. Harvard researcher Claudia Huettner cannot do the same thing in humans, unfortunately, but through such experiments…

  • Oldest known flowering plants identified by genes

    Flowering plants now number 250,000 different species, including virtually all the vegetables and grains we eat, as well as most of the food of the animals that we consume. “It’s…

  • ‘Take two aspirin and call me manana’

    Harvard Medical School is attempting to bridge the language barriers that sometimes arise in medical settings. A set of three medical phrasebooks was first offered in 1999 in three different…

  • Jolie-Pitt Foundation Donates $2 Million to Global Health Committee to Fight HIV/AIDS and Tuberculosis in Ethiopia

    The Global Health Committee (GHC) has announced it will receive $2 million dollars from the Jolie-Pitt Foundation to bring life-saving medicines to Ethiopians suffering from HIV/AIDS and tuberculosis. The money…