Health & Wellness
Ghetti and her co-investigator, Kristen Lyons, a graduate student in psychology at UC Davis, will present their findings Friday morning, Aug. 17, at the annual meeting of the American Psychological Association in San Francisco.
Scientists have demonstrated that dolphins, monkeys and even rats can engage in some form of "metacognition," or an awareness of their own thought processes. But developmental psychologists have assumed that human children do not develop this capability before about age 5.
But a new review of 31 randomized controlled trials published in the Journal of the American Medical Association suggests that so far, only modest evidence supports the use of most medications to raise levels of high-density lipoprotein (HDL) - good cholesterol. Some are even harmful.
The authors concluded that while efforts to lower low-density lipoprotein (LDL or "bad cholesterol") "have consistently reduced cardiovascular disease risk, HDL-based approaches are much more complex and sometimes disappointing." As a result, "the primary focus should be on LDL," said review co-author Mehdi Shishehbor, D.O., of the Cleveland Clinic.
This isn't merely a nod to the denigrating expression "they all look the same." Indeed, the "cross-race effect" is one of the most well replicated findings in psychological research and can lead to embarrassment, social castigation, or the disturbingly common occurrence of eye-witness misidentifications.
Although a potentially charged experience, the causes of the cross-race effect are unclear. In one camp, psychologists argue that in a society where de facto segregation is the norm, people often don't have much practice with individuals of other racial groups and are thus less capable of recognizing distinguishing features.
Director of the Russian Healthcare Foundation Dmitry Golayev cited at a press conference this statistics of the Ministry of Health and Social Development on Wednesday. Meanwhile, he noted that the official statistics lags behind the real figures about 2.5 times, so that about one million people will be infected with AIDS by the yearend. Golayev noted the importance of implementing the national project for AIDS prevention and treatment. Under the project in 2007 about 30,000 infected people will get necessary medicines, and some of them are prisoners. About 20 million people take AIDS tests every year. "The earlier the treatment will begin, the higher chances are to live a full life," Golayev pointed out.
The analysis found that echinacea reduced the risk of catching a cold by 58 percent, and that the duration of a cold was significantly reduced.
NutraSweet Co., known primarily for imbuing diet pop with sugariness, this month launched its first offensive into another big sugar-substitute market: tabletop sweeteners -- the little packets that coffee and tea drinkers dump into their beverages.
Even low levels of weekly exercise drive down blood pressure and boost overall fitness, suggests a small study in the Journal of Epidemiology and Community Health.
To stave off ill health, adults are currently recommended to indulge in 30 minutes of moderately strenuous exercise on at least five days of the week.
But few people meet these recommendations, with lack of time cited as the most common reason for failing to do so.
The study authors invited 106 healthy but sedentary civil servants between the ages of 40 and 60 to take part in an exercise programme for 12 weeks.