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  • Feature

    Wanted: Crime-solving bacteria and body odor

    Forensic biologist Silvana Tridico was puzzled by pubic hair.

    Specifically, pubic hair samples donated by two volunteers.

    She had just finished analyzing the bacteria stuck to the hair of seven people. If each hair sample carried unique mixes of bacteria, Tridico reasoned, investigators might have a new tool to help identify crime suspects. Hair bacteria, like fingerprints, could...

    08/26/2015 - 14:32 Chemistry, Microbiology, Technology
  • Feature

    The Power of D

    A nutritional supplement that is free of charge, offers a wide range of health benefits and poses little risk sounds like fodder for a late-night TV commercial. But proponents of vitamin D are increasingly convinced that the sunshine vitamin delivers the goods, no strings attached.

    It offers a safe route to better health, these advocates say, by...

    07/01/2011 - 12:45 Body & Brain
  • Feature

    Lettuce Liability

    Little more than a year ago, supermarkets from coast to coast stripped fresh spinach from produce aisles as a food-poisoning outbreak swept the nation. From mid-August through September 2006, virulent bacterial infections sickened at least 204 spinach consumers. Five died and 30 others suffered acute kidney failure.

    Among more than 3,500 genetically unique...

    12/03/2007 - 19:41 Agriculture
  • Food for Thought

    Birds Don't Have to Be So Hot

    Last week, Iowa State University issued a news release about how long it takes to cook a turkey if you place it into the oven frozen. The answer: 5.5 hours for a 13- to 15-pound bird cooked in a 325°F oven.

    However, what really caught my attention was something a little lower in the release—that the U.S. Department of Agriculture had issued a statement earlier this year...

    11/20/2006 - 14:15 Nutrition
  • Food for Thought

    Another Way Men and Women Differ

    At least until menopause, women face a lower risk than men do of artery-clogging heart disease. Michigan scientists now turn up one potential reason: before menopause, one of the avenues for clearing meal-derived fats from the blood operates better in women than in men of the same age. This makes the fat less available to the plaque-forming cells in women's arterial walls.

    ...

    08/30/2006 - 16:24 Nutrition
  • Food for Thought

    Reevaluating Eggs' Cholesterol Risks

    Adults are continually bombarded with messages about how eating foods rich in cholesterol can elevate an individual's risks of atherosclerosis and heart attacks. Many such warnings have focused on eggs because their yolks are a major dietary source of cholesterol.

    However, eggs may be getting a bum rap, suggest the findings of a study of middle-aged and elderly volunteers....

    05/02/2006 - 21:28 Nutrition
  • Food for Thought

    Do People Know When They're Overweight?

    A new study finds that most people can estimate their height-weight combinations fairly accurately. However, overweight and obese people miss the mark when they're asked to characterize the healthiness of their weight-to-height status.

    Indeed, among adults who met the National Institutes of Health criteria for being obese, only 15 percent realized they were obese, notes Kimberly P....

    04/21/2006 - 01:24 Other
  • Food for Thought

    Prescription Strength Chocolate, Revisited

    For roughly a decade, science-savvy chocolate consumers have taken comfort from a string of studies suggesting that their sweet and usually high-fat vice has a potential up side. The most reassuring news was that the antioxidant flavonoids abundant in dark chocolate appear to reduce blood pressure and perhaps protect people from dangerous blood clots.

    At the Cocoa Symposium,...

    02/23/2006 - 18:52 Nutrition
  • Food for Thought

    Fruits and Veggies Limit Inflammatory Protein (with recipe)

    Over the past few years, many studies have linked an increased risk of debilitating illness—such as heart disease or diabetes—with chronically elevated blood concentrations of a protein typically associated with inflammation. In many cases, people with the indicated illnesses didn't even have a particularly level of inflammation. The good news: A new trial finds that eating plenty of fruits...

    12/01/2005 - 14:38 Nutrition
  • Food for Thought

    We're All Likely to Get Fat

    So you've kept a fairly trim physique into middle age. Don't get smug. A new study suggests that you too may develop a paunch or worse in coming years.

    Since 1948, researchers have been studying heart health and related factors in a large group of people—and their descendants—living in Framingham, Mass. The current study analyzed 3 decades of data that had been collected on some 4,000...

    10/13/2005 - 14:44 Nutrition