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 Stripped-down synthetic organism sheds light on nature of life Read More » Dracula Science: How Long Does It Take for a Vampire to Drain Blood? Read More » Live Sumatran Rhino Captured in Indonesia Read More » Mystery of Long-Lost Navy Tugboat Is Solved Read More » Debris Belongs to Doomed Malaysia Airlines Flight MH370, Experts Say Read More » Print Your Hike! 3D Keepsakes Memorialize Mountain Conquests Read More » Women with Oral HPV Also Usually Have Vaginal HPV Infections with the human papillomavirus (HPV) in the mouth or throat are not common, but a new study finds that about three-quarters of women who do have an oral HPV infection also have a vaginal HPV infection. The study also found that women who'd had two or more oral sex partners in the past year were three times more likely to have both oral and vaginal infections with the same strain of HPV (called a concordant infection) than women who'd had no oral sex partners in the past year. The findings support the "genital-oral transmission theory," the researchers said, in which an HPV infection of the genitals is transmitted to the mouth or throat through oral sex. Read More »Exercise May Stave Off Cognitive Decline Older people who exercise may experience a slower rate of cognitive decline than those who don't exercise, according to a new study. The people in the study who did not exercise at all or who exercised very little experienced a decline in their memory and thinking skills equal to 10 extra years of cognitive aging compared with the people who were more physically active. "More and more evidence is suggesting that exercise is good for the brain, and in this observational study, we found that people who were more active declined less on certain tests than people who were less active," said study co-author Dr. Clinton B. Wright, an associate professor of neurology at the University of Miami in Florida. Read More »Is 'Cat Litter' Parasite Making You a Rageaholic? Uncontrollable, explosive bouts of anger such a road rage might be the result of an earlier brain infection from the toxoplasmosis parasite, an organism found in cat feces, a new study finds. In the study of more than 350 adults, those with a psychiatric disorder called Intermittent Explosive Disorder, or IED, were twice as likely to have been infected by the toxoplasmosis parasite compared with healthy individuals with no psychiatric diagnosis. The study adds to a growing body of evidence suggesting that toxoplasmosis — usually a mild or nonsymptomatic infection from a protozoan parasite called Toxoplasma gondii — may somehow alter people's brain chemistry to cause long-term behavior problems. Read More »Couples' Caffeine Use Linked to Higher Risk of Miscarriage Couples who wish to get pregnant may want to avoid caffeine because it's associated with an increased risk of miscarriage, a new study from the National Institutes of Health (NIH) suggests. But women's caffeine consumption wasn't the only factor: Among couples in which the male partner drank more than two caffeinated beverages daily before conception, there was a 73 percent higher risk of a miscarriage, according to the study. Read More »Heart Attack Patients Are Getting Younger, and Sicker People who experience the most severe type of heart attack have become younger and more obese in the past two decades, according to a new study. This group is also increasingly more likely to smoke, and to have high blood pressure and diabetes, all of which are preventable risk factors for a heart attack, the researchers found. "On the whole, the medical community has done an outstanding job of improving treatments for heart disease, but this study shows that we have to do better on the prevention side," study co-author Dr. Samir Kapadia, an interventional cardiologist at Cleveland Clinic, said in a statement. Read More »Zika Virus Was in Brazil a Year Before It Was Detected The Zika virus was likely circulating in Brazil for more than a year before it was detected, according to a new genetic analysis of a small number of Zika samples from Brazil. Airline data from that time show an upsurge in the number of people traveling to the country, particularly from areas where Zika was circulating. The findings suggest that, contrary to previous speculations, fans who attended the FIFA World Cup or a championship canoe race, held in Brazil in 2014, aren't to blame for bringing the virus into the country. Read More » | ||||
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Friday, March 25, 2016
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