More than 40 million people worldwide suffer from Alzheimer's disease, and that number is expected to increase drastically in the coming years. But no real progress has been made in the fight against the disease since its classification more than 100 years ago. Scientist Samuel Cohen shares a new breakthrough in Alzheimer's research from his lab as well as a message of hope. "Alzheimer's is a disease," Cohen says, "and we can cure it."
The dispute over shaken baby syndrome is a bitter civil war. Norman Guthkelch, the pediatric neurosurgeon who is credited with first observing the condition in young children, is speaking out for the first time about his concerns regarding how that diagnosis is used. He worries that it is too often applied by medical examiners and doctors without considering other possible causes for a child's death or injury.
Russian warplanes have been carrying out airstrikes against insurgents in Syria, leading some to call for a no-fly zone in order to reduce civilian casualties and stem the flow of refugees, while countering Russia’s intervention.