Too little or too much sleep have both been linked with a shorter life. But new research suggests the antidote to tossing anf turning may be yet another benefit of exercise. In what was the first such work of its kind, compared the records of 92,221 people aged between 40 and 73 who had worn accelerometer wristbands during UK Biobank research for a week between 2013 and 2015. Short sleep was classified as less than six hours and long more than eight hours. Researchers found both were linked with raised risk of death for all but those who had taken high levels of exercise.