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TwitterActive senior couple running in the woods. (Credit: iStockphoto/Marcel Mooij)From Science Daily:ScienceDaily (Mar. 3, 2009) — When it comes to the hippocampus, a brain structure vital to certain types of memory, size matters. Numerous studies have shown that bigger is usually better. Now researchers have found that elderly adults who are more physically fit tend to have bigger hippocampi and better spatial memory than those who are less fit.The study, in the journal Hippocampus, shows that hippocampus size in physically fit adults accounts for about 40 percent of their advantage in spatial memory.Read more ….
Posts Tagged ‘Istockphoto’
Physical Fitness Improves Spatial Memory, Increases Size Of Brain Structure
March 3rd, 2009 
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Posted in Science News 
Tags: Advantage, Brain Structure, Elderly Adults, Hippocampus, Istockphoto, Marcel, Memory Brain, Memory Increases, Memory Size, Physical Fitness, Physical Memory, Science Daily, Sciencedaily, Size Matters, Spatial Memory, Types Of Memory 
Comments OffAdditional Evidence That Potato Chips Should Be Eaten Only In Moderation
February 26th, 2009 admin Acrylamide, found in foods such as potato chips and french fries, may increase the risk of heart disease. Acrylamide has been linked previously to nervous system disorders and possibly to cancer. (Credit: iStockphoto/Alexander Zhiltsov)From Science Daily:ScienceDaily (Feb. 26, 2009) — A new study published in the March 2009 American Journal of Clinical Nutrition by Marek Naruszewicz and colleagues from Poland suggests that acrylamide from foods may increase the risk of heart disease. Acrylamide has been linked previously to nervous system disorders and possibly to cancer.After ingesting large amounts of potato chips providing about 157 micrograms of acrylamide daily for four weeks, the participants had adverse changes in oxidized LDL, inflammatory markers and antioxidants that help the body eliminate acrylamide—all of which may increase the risk of heart disease.Read more ….
Posted in Science News Tags: Acrylamide, Alexander, American Journal Of Clinical Nutrition, Antioxidants, Cancer, Colleagues, French Fries, Heart Disease, Inflammatory Markers, Istockphoto, Journal Of Clinical Nutrition, Micrograms, Moderation, Nervous System Disorders, Participants, Poland, Potato Chips, Risk Of Heart Disease, Science Daily, Sciencedaily Comments OffSix Ways to Boost Brainpower
February 23rd, 2009 admin Image Composition By Scientific American Mind; Julie Felton Istockphoto (barina); Dean Turner Istockphoto (background)From Scientific American:Key Concepts * Scientists are finding that the adult human brain is far more malleable than they once thought. Your behavior and environment can cause substantial rewiring of your brain or a reorganization of its functions.
Posted in Science News Tags: Barina, Cognitive Performance, Dean Turner, Executive Skills, Human Brain, Image Composition, Istockphoto, Key Concepts, Lost One, Missing Fingers, Neuroscientist, Phantom Limb, Phantom Limbs, Playing Video Games, Remarkable Change, Rewiring, Scientific American, Scientific American Mind, Six Ways, Somatosensory Cortex Comments OffSecrets Of Stradivarius’ Unique Violin Sound Revealed, Professor Says
January 26th, 2009 admin What makes a Stradivarius’ violin sound different from other violins? (Credit: iStockphoto/José Carlos Pires Pereira)From Science Daily:ScienceDaily (Jan. 25, 2009) — For centuries, violin makers have tried and failed to reproduce the pristine sound of Stradivarius and Guarneri violins, but after 33 years of work put into the project, a Texas A&M University professor is confident the veil of mystery has now been lifted.Joseph Nagyvary, a professor emeritus of biochemistry, first theorized in 1976 that chemicals used on the instruments – not merely the wood and the construction – are responsible for the distinctive sound of these violins.
Posted in Science News Tags: 33 Years, Controversial Theory, Distinctive Sound, Electron Microprobe Laboratory, Experimental Support, Geophysics, Guarneri Violins, Istockphoto, Joseph Nagyvary, M University, Pristine Sound, Professor Emeritus, Public Library Of Science, Science Daily, Sciencedaily, Spiegelman, Stradivarius Violin, Stradivarius Violins, Violin Makers, Violin Sound Comments OffHigh Caffeine Intake Linked To Hallucination Proneness
January 15th, 2009 admin People with a higher caffeine intake, from sources such as coffee, tea and caffeinated energy drinks, are more likely to report hallucinatory experiences such as hearing voices and seeing things that are not there. (Credit: iStockphoto/Ong Kok Keat)From Science Daily:High caffeine consumption could be linked to a greater tendency to hallucinate, a new research study suggests.People with a higher caffeine intake, from sources such as coffee, tea and caffeinated energy drinks, are more likely to report hallucinatory experiences such as hearing voices and seeing things that are not there, according to the Durham University study.‘High caffeine users’ – those who consumed more than the equivalent of seven cups of instant coffee a day – were three times more likely to have heard a person’s voice when there was no one there compared with ‘low caffeine users’ who consumed less than the equivalent of one cup of instant coffee a day.
Posted in Science News Tags: Caffeinated, Caffeine Consumption, Caffeine Intake, Coffee Tea, Durham University, Energy Drinks, Experiences, Hearing Voices, Instant Coffee, Istockphoto, Keat, Kok, People, Science Daily, Seeing Things, Tendency, Three Times Comments OffHumans And Chimps Register Faces By Using Similar Brain Regions
December 29th, 2008 admin Photo: Chimpanzee. Chimpanzees recognize their pals by using some of the same brain regions that switch on when humans register a familiar face. (Credit: iStockphoto)From Science Daily:ScienceDaily (Dec. 27, 2008) — Chimpanzees recognize their pals by using some of the same brain regions that switch on when humans register a familiar face, according to a report published online on December 18th in Current Biology, a Cell Press publication.
Posted in Science News Tags: Brain Activity, Brain Photo, Brain Regions, Chimpanzee, Chimpanzees, Chimps, Current Biology, Emory University, Face Recognition, Familiar Face, Human Cognition, Human Origins, Istockphoto, Lisa Parr, Pals, Primate Research Center, Researcher, Science Daily, Sciencedaily, Yerkes Comments OffCosmic Rays Do Not Explain Global Warming, Study Finds
December 18th, 2008 admin Changes in cosmic rays are not likely to contribute to climate change.(Credit: iStockphoto)From Science Daily:ScienceDaily (Dec. 17, 2008) — A new study supports earlier findings by stating that changes in cosmic rays most likely do not contribute to climate change. It is sometimes claimed that changes in radiation from space, so-called galactic cosmic rays, can be one of the causes of global warming. A new study, investigating the effect of cosmic rays on clouds, concludes that the likelihood of this is very small.A group of researchers from the University of Oslo, Norwegian Institute for Air Research (NILU), CICERO Center for Climate and Environmental Research, and the University of Iceland, are behind the study.Read more ….
Posted in Science News Tags: Causes Of Global Warming, Cicero Center, Climate Change, Clouds, Galactic Cosmic Rays, Istockphoto, Likelihood, Nilu, Norwegian Institute, Radiation, Science Daily, Sciencedaily, University Of Iceland, University Of Oslo Comments OffWhy Do Men Buy Sex?
December 8th, 2008 admin Photo: iStockphotoFrom Scientific Magazine: * In the U.S., police officers detained about 78,000 people in 2007 for prostitution-related crimes, according to the Federal Bureau of Investigation. Only about 10 percent of these arrests are of the sex patrons, who almost exclusively are men.
Posted in Science News Tags: Afflictions, Appetite, Choices, Crimes, Desire, Estimates, Federal Bureau Of Investigation, Female Prostitutes, Istockphoto, Lifetime Prevalence, Men Sex, Motives, Patrons, Police Officers, Proportion, Salve, Sex Photo, Sex Romance, Sex Trade, Trade Men Comments Off