October 24, 2012 "One common property we see in animal groups from schooling fish to flocking birds to primate groups is that they effectively vote to decide where to go and what to do," says an evolutionary biologist. But like human leaders, successful animal leaders know they can't get too far ahead of their constituents.
October 17, 2012 New research suggests that by the time an Alzheimer's patient is diagnosed, many key neurons are already dead. Neuroscientists say it's possible that several recent trials of drugs for Alzheimer's have failed because the drugs were given after symptoms had already started to appear.
October 16, 2012 New research presented at the Society for Neuroscience meeting suggests that teens are not necessarily wired to be impulsive. Researchers are also learning more about why it's important to treat problems like depression in teens early.
October 15, 2012 Scientists say new insights about how stress affects the brain could lead to new treatments for post-traumatic stress disorder, anxiety and depression.
September 24, 2012 The new drug reversed changes in blood vessels that usually lead kids with the rare genetic disease progeria to have heart attacks and strokes. Research on the toxic protein responsible for progeria is also changing scientists' understanding of how normal cells age.
August 14, 2012 A study found that a third of the residents of Minamisoma had detectable levels of radiation. But another study said plant workers are at risk of psychological distress.
August 7, 2012 Pfizer's research on an experimental drug that attacks plaques in the brain has been discontinued. But scientists say they're hopeful that new treatments that attack a specific protein in plaques will have better success.
July 30, 2012 As BPA is phased out of some plastics, there are questions about the safety of other chemicals. A suit has been filed against Eastman, a company that makes a new BPA-free plastic called Tritan. Do other chemicals carry the same risks alleged for BPA?