
Short on sleep, the brain optimistically favors long odds

Short on sleep, the brain optimistically favors long odds

County-Level "Diabetes Belt" Carves a Swath through U.S. South
Going past national statistics, a new map shows more than 640 counties in mostly southern states had higher-than-average rates of diabetes, suggesting the need for more targeted prevention

Evolution Abroad: Creationism Evolves in Science Classrooms around the Globe
Education experts suggest that in some cultural contexts one way to encourage acceptance of evolution is by not shunning religious beliefs

Sophisticated stone tools and piles of bones identify early bird hunters in coastal California

Tiger sharks can relocate familiar hunting spots from several kilometers away

Researchers convince people they have three arms--then threaten one with a knife

Cell phone emissions change brain metabolism

Hibernating black bears suggest new paths for tissue preservation

Was "Ardi" not a human ancestor after all? New review raises doubts

X-rays blow up secret to van Gogh's fading sunflowers

Fungus-farming leaf-cutter ant's genome sequenced

New fossil shows "Lucy" to have been steady on her feet

Wireless Heart Monitor Fine-Tunes Cardiac-Failure Treatment
A new implanted electromechanical pressure sensor reduced the number of hospital readmissions for chronic heart-failure patients by 30 percent

Flea films find feet-first formula for fast fleeing

New Salmonella strain delivers gene-based therapy to fight virus in mice

Your MRI is calling: FDA approves first medical iPhone app

Global growth: More than 10 percent of adults worldwide are now obese

Copious Genes of Tiny Water Flea Promise a Leap in Understanding Environmental Toxins
With the Daphnia genome in hand, scientists hope to put this key environmental indicator species to even better work

Bush-league male mates stress out female finches

Aerobic exercise bulks up hippocampus, improving memory in older adults

Diets Low in Omega-3 Linked to Depressive Behavior in Mice
New research shows why some individuals deficient in beneficial fatty acids might be more prone to mood disorders

Middle Eastern Stone Age Tools Mark Earlier Date for Human Migration out of Africa
Thanks to climatic shifts, early modern humans might have crossed a shallow sea from Africa to a verdant Arabian Peninsula more than 125,000 years ago

Background noise: Elderly drivers might have a brain region to blame for declining driving skills

Did romantic composer Chopin suffer from epilepsy-induced hallucinations?