Despite their bad reputations, the vast majority of mutations are not harmful. Even in very rare genetic disorders, only one or two genetic variations ­— out of tens of thousands — is actually the cause of disease. Distinguishing between harmful and harmless mutations has long been a challenge....

Chronic stress can lead to changes in neural circuitry that leave the brain trapped in states of anxiety and depression. But even under repeated stress, brief opportunities for recovery can open up, according to new research at ĐÓ°É. “Even after a long period of chronic st...

From before birth through childhood, connections form between neurons in the brain, ultimately making us who we are. So far, scientists have gained a relatively good understanding of how neural circuits become established, but they know less about the genetic control at play during this crucial d...

Some responses come automatically, like reflexes. Others vary with circumstance and experience. A once-delicious smell can be easily overlooked during a stressful moment or when it calls to mind a bout of food poisoning, for instance. This happens because, within the brain, molecules known as neu...

Many animals gravitate towards heat, most often to regulate their own body temperatures. In rare cases, certain species—ticks, bedbugs, and some species of mosquitoes—seek out heat for food. For female mosquitoes, finding heat is essential for survival, as they need to feast on warm-blooded prey...

A Nobel Laureate Turning 90 Continues to Churn Out Ideas for New Drugs Ěý "Paul Greengard has been busy. In August he co-authored a paper on molecules that appear to regulate genes that might protect against Parkinson’s. That same month he took the lead on another paper that describes a protei...

byĚýKatherine Fenz, media relations manager Helen Hobbs, a cardiology researcher, received the 2015 Pearl Meister Greengard Prize during a festive event in the Caspary Auditorium last month. The award, which Dr. Hobbs received for her pioneering research into the genetics of high cholesterol and ...

For many living things, a roughly 24-hour internal clock governs the rhythms of life—everything from sleep in animals, to leaf opening in plants and reproduction in bread mold. Scientists have come to understand much about this internal time-keeping system, but one important aspect, its complex r...

Part of the reason people find smoking difficult to quit is that each time they have a cigarette, feelings of craving, irritability and anxiety melt away. This component of addiction is known as negative reward and is controlled in part by a region of the brain called the habenula. The neurotrans...

There's no such thing as a male or female brain, study finds Ěý "These results add to a complex picture that you’d never guess from media accounts and pop psych books. After decades of research, 'we’re still debating the question of whether there are sex differences in the [human] brain and ...