December 17, 2013 Vitamin deficiencies can cause deadly diseases like scurvy, and other major health problems like spina bifida. But for most people, adding a multivitamin to their daily routine doesn't affect their health at all, studies say. Still, 40 percent of Americans continue to take multivitamins.
December 16, 2013 Many soaps and other consumer products have chemicals that are advertised as antibacterial. But there's no evidence that they actually keep people from getting sick, the FDA says. And they may increase the threat of bacteria that are resistant to antibiotics.
December 16, 2013 Parents of newborns say they're often surprised to see how much bigger their older children suddenly look. Psychologists say that may be because mothers seriously underestimate the height of their youngest children, an error that could lead to more care and attention for them.
December 13, 2013 YouthRadioOne year after the shootings in Newtown, Conn., the issue of gun violence continues to resonate around the country. In some communities, like the Castlemont neighborhood in Oakland, Calif., some young people try to cope with the threat of daily violence by simply trying to tune it out.
December 11, 2013 Student athletes know they need to avoid concussions. But hits that don't cause concussion symptoms can affect the brain, too. Researchers are now trying to figure out who is most at risk from those smaller hits, and if they can be warned in advance.
December 10, 2013 An NPR poll finds that most elementary school kids have physical education classes just one or two days a week. In response, parents and educators are getting kids to squeeze in walks, jogs and jumping jacks before, after and even during school.
December 9, 2013 Watching violent movies makes teenagers more aggressive, and that violence is almost always associated with sex, drinking and smoking. Violent characters in PG-13 movies are as likely to indulge in violent activities as those in R-rated flicks.
December 7, 2013 Earlier efforts to use gene therapy to treat a rare immune disorder in young children failed when some of the children got leukemia. Scientists say they think they may have figured it out, with eight children now living normal toddler lives.
December 6, 2013 Officials in China's commercial capital ordered schoolchildren to stay indoors, construction to halt and even delayed flights because of the city's highest-ever pollution levels.
December 6, 2013 That difference translates to about $550 a year, according to a new meta-analysis of studies evaluating the retail costs of food, grouped by healthfulness. It's chump change for middle-class eaters, but a big gap for low-income families. Researchers say that's a problem that can be solved.
December 5, 2013 The notoriously short night's sleep that many tired adolescents get isn't all about surging hormones and too much homework, according to a sociologist who looked at shifting sleep patterns from ages 12 to 15. Teens who report good relationships with family and schoolmates tend to sleep better.
December 4, 2013 For years doctors have been telling women that it's risky to implant multiple embryos when they do in vitro fertilization. They've listened, and the number of multiples from IVF has dropped. But the number of births of triplets or more has barely budged because of women's use of fertility drugs.