ScienceDaily Health Headlines
for Saturday, July 26, 2008
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Why Cigarette Smoke Makes Flu, Other Viral Infections Worse (July 25, 2008) -- A new study could explain why the cold and flu virus symptoms that are often mild and transient in non-smokers can seriously sicken smokers. The study also identified the mechanism by which viruses and cigarette smoke interact to increase lung inflammation and damage. ... > full story
It Takes Nerves For Flies To Keep A Level Head (July 25, 2008) -- The nerve connections that keep a fly's gaze stable during complex aerial maneuvers, enabling it to respond quickly to obstacles in its flight path, have been revealed in new detail. ... > full story
Gene Responsible For Rare Childhood Disease Identified (July 25, 2008) -- The chromosomal abnormality that causes a rare, but often fatal, disorder that affects infants has been identified by researchers who happened to treat two young children with the disease in San Diego -- two of perhaps a dozen children in the entire country diagnosed with the disorder. ... > full story
Various Species' Genes Evolve To Minimize Protein Production Errors (July 25, 2008) -- Genetic evolution is strongly shaped by genes' efforts to prevent or tolerate errors in protein production. Previously unexplained patterns of evolution may aim to prevent or tolerate mistranslation. ... > full story
Energy Drinks Linked To Risk-taking Behaviors Among College Students (July 25, 2008) -- Over the last decade, energy drinks -- such as Red Bull, Monster and Rockstar -- have become nearly ubiquitous on college campuses. Now new research validates and expands upon existing concerns about energy drink consumption. ... > full story
Older People May Need Less Sleep, Study Finds (July 25, 2008) -- Along with all the other changes that come with age, healthy older people also lose some capacity for sleep. When asked to stay in bed for 16 hours in the dark each day for several days, younger people get an average of 9 hours of shuteye compared to 7.5 for older people, the researchers report. ... > full story
Broken DNA Must Find Right Partners Quickly Amid Repairs (July 25, 2008) -- Just as square dance partners join hands at a particular point in the music, so broken pieces of DNA in our cells reunite as they are repaired. Precisely and quickly, these DNA pieces identify each other and tether together. A tumor-suppressor gene called ATM choreographs this fast-paced, but reliable, reassembly operation. ... > full story
Frequent Family Meals Might Reduce Teen Substance Use (July 25, 2008) -- Parents who have regular meals with their adolescent children might help lessen the chances they will start drinking or smoking later in their teen years, according to new research. Researchers noted benefits in families that ate five or more meals together each week, and found that about 60 percent of the participants did so. ... > full story
Missing Link Found Between Circadian Clock And Metabolism (July 25, 2008) -- Two new research studies have discovered a long sought molecular link between our metabolism and components of the internal clock that drives circadian rhythms, keeping us to a roughly 24-hour schedule. ... > full story
EPA Acts To Reduce Toxic Pesticide -- Carbofuran -- Residue In Food (July 25, 2008) -- Due to considerable risks associated with the pesticide carbofuran in food and drinking water, the U.S. Environmental Protection Agency is revoking the regulations that allow carbofuran residues in food. EPA is proceeding on the path toward cancellation of the pesticide registration, which will address the risks to pesticide applicators and birds in treated fields. ... > full story
Advanced Liver Cancer Patients Live Longer By Taking Anti-cancer Drug Sorafenib (July 25, 2008) -- Researchers have found that sorafenib (Nexavar) helps patients with advanced liver cancer live about 44 percent longer compared with patients who did not receive the anti-cancer drug. The findings are a significant advance in the management of liver cancer, which is the third cause of cancer death globally, often resulting in death within a year of diagnosis. ... > full story
Freedom’s Just Another Word For Less Sexually Active Teens (July 25, 2008) -- Rigid parenting appears to be linked to increased sexual activity in older teens. More than two of every three American teens has sexual intercourse before age 19. Although it is difficult to confirm that controlling mothers and fathers cause kids to have more sex, the findings suggest it is wise to give children freedom. ... > full story
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