Adults who have trouble nodding off could be setting themselves up for cognitive decline in later life, according to scientists writing in the journal Neurology. "People who have more disrupted sleep in their 30s and 40s may be more likely to have memory and thinking problems a decade later," they warned. "Growing evidence supports an association between sleep quality and risk of dementia," the team added. Their work covered over 500 people who were tracked for 11 years. While they conceded it did not prove sheep-counters in their 30s would end up with cognition problems when they get old, the...