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Your search has returned 1919 articles:
  • Rethink

    Thick calluses don’t make feet any less sensitive

    The tender feet of the shoe-clad are no better at sensing the ground than the callused soles of the barefoot.

    Calluses, skin thickened by rubbing against other surfaces, would seem to offer protection at the expense of sensitivity. But that isn’t what Harvard University human evolutionary biologist Daniel Lieberman has experienced when he runs barefoot in summer.

    As Lieberman’s...

    06/26/2019 - 13:00 Health
  • News

    3-D mammograms are popular, but are they better than 2-D?

    In recent years, women getting a mammogram have had a new decision to make: 2-D or 3-D?

    Some breast-care centers have touted the newer 3-D mammography technology as more accurate. But while initial research suggests that it may be a more sensitive diagnostic test, evidence that the technology actually reduces the number of deaths from breast cancer better than 2-D imaging is lacking....

    06/24/2019 - 12:09 Health
  • News in Brief

    Rotavirus vaccines may lower kids’ chances of getting type 1 diabetes

    The rotavirus vaccine may have an unexpected benefit: a reduced likelihood of developing type 1 diabetes.

    The vaccine is highly effective at protecting against intestinal infections caused by the virus (SN: 8/8/15, p. 5). Past work in mice prone to diabetes suggests infection with rotavirus can hasten damage to beta cells in the pancreas, the cells that are destroyed in a person with...

    06/18/2019 - 10:45 Health
  • News

    Norovirus close-ups might help fight stomach flu

    Knowing your enemy is an important principle of competition, and scientists may just have become more familiar with one nasty stomach virus.

    Closeup looks at several strains of norovirus reveal that the vomit- and diarrhea-inducing virus can come in a variety of sizes, researchers report online June 10 in the Proceedings of the National Academy of Sciences. Knobs studding the virus’s...

    06/17/2019 - 10:00 Microbiology, Microbes, Health
  • News in Brief

    Bats are the main cause of rare rabies deaths in the U.S.

    In the United States, the landscape of rabies transmission has shifted over the last 70 years. 

    Following a massive campaign to vaccinate dogs starting in 1947, rabies deaths linked to dog bites and scratches have dropped, and those from wild animals now carry a greater share of the blame. Since 1960, bats have caused 62, or roughly 70 percent, of the 89 deaths from rabies exposure that...

    06/12/2019 - 13:14 Animals, Health
  • News

    Extra fingers, often seen as useless, can offer major dexterity advantages

    An extra finger can be incredibly handy. Two people born with six fingers per hand can tie their shoes, adroitly manage phones and play a complicated video game — all with a single hand, a study shows.

    These people’s superior dexterity, described June 3 in Nature Communications, suggests that instead of being seen as aberrations that ought to be surgically removed, extra fingers can...

    06/12/2019 - 07:00 Health, Neuroscience
  • News

    A tiny crater on viruses behind the common cold may be their Achilles’ heel

    A newly discovered indentation on the surface of viruses that cause many illnesses, including the common cold, could be their Achilles’ heel — and a possible target for effective drugs.

    When scientists tested antiviral compounds on cells grown in the lab, the team found one that blocked the replication of an enterovirus. Cryo-electron microscopy revealed that the compound binds to and...

    06/11/2019 - 14:00 Health
  • News in Brief

    Medicaid-expanding states had fewer cardiovascular deaths than other states

    States that expanded eligibility for Medicaid insurance coverage saw fewer deaths related to cardiovascular disease than if they hadn’t broadened the program’s reach, a new study shows. It’s another indication that Medicaid expansion, part of the Affordable Care Act, appears to be improving public health.

    Counties in states with expanded eligibility had 4.3 fewer cardiovascular-related...

    06/07/2019 - 13:00 Health
  • News

    Limiting global warming to 1.5 degrees C could prevent thousands of deaths in the U.S.

    Having the world meet a more stringent goal to limit global warming may prevent thousands of heat-related deaths in 15 major U.S. cities, a study shows. The projections illustrate the high risk from climate change faced by urban populations.

    Under the Paris Agreement, participating countries have pledged to curb greenhouse gas emissions with the aim of limiting warming to no more than 2...

    06/05/2019 - 14:00 Health, Climate
  • News

    Gut bacteria may change the way many drugs work in the body

    Prescribing the best medication may require going with a patient’s gut — or at least, the bacteria that live there.

    Anecdotal reports have revealed that some gut-dwelling microbes chemically alter oral medications, affecting how well those drugs work (SN Online: 7/19/13). But the scope of this problem has remained unclear. Now, a sweeping survey of these interactions suggests that gut...

    06/03/2019 - 11:00 Microbiology, Biomedicine, Health