Sleeping too little or too long is linked with a shorter life, but scientists have found that physical activity counteracts some of these negative effects. The research in more than 90,000 adults is published today in the European Journal of Preventive Cardiology, a journal of the European Society of Cardiology (ESC).1
“The study showed that increased physical activity levels weakened the mortality risks associated with short or long sleep duration,” said study author Dr. Jihui Zhang of The Affiliated Brain Hospital of Guangzhou Medical University, China.
Both sufficient exercise and healthy sleep contribute to prolonged life expectancy. However, it has been unclear how physical activity may interact with sleep duration to promote health. The main limitation of previous studies was the use of self-reported physical activity and sleep, which is subjective and may be inaccurate. In contrast, an accelerometer device records movement, thereby providing objective and more reliable estimates of activity and sleep duration.
This was the first study to examine the joint effects of physical activity and sleep duration on mortality risk using accelerometry. The study included 92,221 adults aged 40 to 73 years in the UK Biobank cohort who wore an accelerometer wristband for one week between 2013 and 2015.
Wellness Secrets of a SuperAger 
As a teenager I remember those ice cream cartons in the freezer… “Cold comfort”
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