A new study suggests that pot makes users forgetful by binding not to neurons but to the brain's supporting glial cells called astrocytes
Books and recommendations from Scientific American
A molecule related to chondroitin supplements alerts fish of nearby danger
If someone asked you to sketch a portrait of a gamer who spends countless hours each week inhabiting an avatar—say, an elf or a warlock—in a virtual fantasy world, what kind of person would you draw?...
New tests could spare soldiers from debilitating sickness at high altitudes--and mitigate cattle deaths in the Rockies
Let's be honest: tarsiers look odd. Among the smallest of all primates, most species of tarsier would fit easily in the palm of your hand. They have long, slender, largely hairless tails and elongated fingers with knobby knuckles and mushroom-cap finger pads.To fully confront the tarsier's bizarre anatomy, you must stare it in the face...
Two doses of gene therapy restore vision to three women who were born nearly blind
There are 2,027 ways to be diagnosed with autism in DSM-IV and only 11 ways in DSM-5, but the numbers alone are misleading
Experts call for small and easy changes to the Diagnostic and Statistical Manual, the "bible" of psychiatry, so that everyone with autism spectrum disorder qualifies for a diagnosis...
The meticulous insects pirouette atop their dung balls to get their bearings and correct navigational errors
The obese may soon have a new tool to curb hunger
Stimulating a particular region of the brain alters the way rhesus macaques perceive optical illusions
New research shows that the antidepressant reduces fear in adult mice by increasing brain plasticity
A new study suggests that rodents are far more altruistic than previously thought
Memorizing 25,000 city streets balloons the hippocampus, but cabbies may pay a hidden fare in cognitive skills
Modern techniques could reveal whether the celebrated English novelist's surviving hair contains unusually high levels of arsenic
Researchers plan to create chewing gum that sneaks an appetite-suppressing hormone through the gut and into the blood
Researchers continue to explore whether magnetic fields produced by magnetic resonance imaging devices and others improve mood in those who suffer from depressive disorders
As Nobel Prize winners gather this month to share their wisdom with younger researchers, Scientific American recalls some of the articles that Nobel laureates have published in our pages...