Though sperm are generally considered pretty wriggly little guys, before they are launched into action, so to speak, they aren’t racing around. While researchers have long known that what gets them swimming is a change in internal pH level—the more alkaline their pH, the more aggressively they swim—until now, the mechanism by which
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Some 40% of cancers could be prevented with simple lifestyle changes and higher levels of protection from cancer-causing infections, according to experts at the International Union Against Cancer (UICC). Cancer-causing infections are responsible for 22% of deaths in the developing world, and 6% of deaths in the developed world, according
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Writer Ariel Gore was dismayed by what she viewed as overly narrow conclusions about women’s happiness from studies in the growing field of Positive Psychology—were women truly happiest when scrubbing floors and baking cookies, as some studies seemed to suggest? Were findings about nuns’ positive attitudes helping them live longer
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Even among Americans with health insurance, getting adequate medical care can mean facing some financial hurdles. According to some estimates, as many as 25 million Americans are “underinsured,” or technically have health insurance, but cannot afford the copayments, deductibles and other fees that represent the gap between their
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This week several organizations, including the International Breast Milk Project, issued a call for human milk donations for infants in Haiti, as the U.S. Navy ship Comfort is equipped with a neonatal intensive care unit that can transport the breast milk. Yet, while nursing mothers have heeded the call, and some 500 ounces of donated
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Beyond making you cranky and impatient, it turns out that being hungry—or more specifically, having low blood sugar—may actually change the way that you make decisions. In a new study published in the journal Psychological Science, University of South Dakota researchers X.T. Wang and Robert D. Dvorak found that people with lower
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When the diet drug Meridia was approved by the Food and Drug Administration more than a decade ago, the American Heart Association was quick to urge caution, stressing that the medication—which works in part by curbing appetite by interacting with serotonin, the neurotransmitter that helps regulate the sensation of fullness—might
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Post-traumatic stress disorder (PTSD) is a growing problem in the U.S., driven largely by the prevalence of the condition among soldiers and other military personnel returning from war in Iraq and Afghanistan. PTSD, which is characterized by feelings of numbness, depression, guilt, vivid nightmares and disrupted sleep, among other
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Soda fountains may dispense more than Diet Coke and Dr. Pepper, according to new research to be published this month in the International Journal of Food Microbiology. In an analysis of 90 soda and water samples taken from fountains in 30 different fast food restaurants in the Roanoke Valley region of Virginia, researchers from Hollins
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Patients who suffer a stroke on the weekends may receive more aggressive care in hospitals compared with those who have a stroke on a weekday, according to new research published in the Archives of Neurology. Drawing on previous research that suggested that heart attack patients admitted on weekends may not receive the same quality of
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In recent years New York City has earned a reputation for ambitious—and some argue, overreaching—efforts to improve its’ citizens health. In 2006, the city’s Board of Health voted to ban trans fats in restaurant cooking. Two years later, they mandated that any restaurants with 15 or more chain locations post calorie content in their
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The idea that power can promote hypocrisy is not new, or lacking for anecdotal evidence. From the infamous example of former New York Governor Eliot Spitzer‘s public persona as an enforcer of ethics contradicted by his private appetite for prostitutes, to South Carolina Governor Mark Sanford‘s messages of family values undermined by his
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Whether or not a mother can successfully breast-feed her infant may have to do with her concentrations of testosterone, according to a new study from researchers at the Norwegian University of Science and Technology. The study, published in the journal Acta Obstetricia and Gynecologica Scandinavica, followed 180 women from pregnancy
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