Why poor sleep and forgetfulness plague the ageing brain

  Old age tends to make us forgetful, and elderly people often have trouble sleeping too. Now a new study suggests that these two annoyances may be connected: age-related shrinking of a specific part of the cortex causes sleep disturbances, which in turn interfere with memory formation. http://www.nature.com/news/why-poor-sleep-and-forgetfulness-plague-the-ageing-brain-1.12303