That 9 p.m. showing of Spectre last Thursday may have given you more than an adrenaline boost.
It may have left you with a case of social jet lag, which is a mismatch between your socially imposed schedule and your natural circadian rhythm.
If you noticed the phenomenon, it was in the form exhaustion the next day at work and one-too-many cups of coffee to make it to 5 p.m. But your body registered more serious consequences.
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Small disruptions in sleep patterns are associated with increased risk for serious metabolic diseases including obesity, diabetes and cardiovascular disease, according to new research.
And even when these disruptions are normalized as part of your schedule - say, sleeping in longer on nonwork days than work days - your body will feel the burn.
In a group of almost 450 adults, researchers found that the vast majority - 85 percent - had earlier halfway points in their sleep cycle on nights before they had to work compared to nights before free days. When study participants had to clock in the next morning, the halfway point of the night came 15 percent earlier.
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Those with the greatest differences in free day and work day sleep schedules had higher fasting insulin, worse cholesterol profiles, bigger waist circumference, and greater insulin resistance and body mass index - all serious metabolic consequences that can be early warning signs of diabetes and heart disease.
Previous research has connected shift work with metabolic disorders, but this study is one of the first to show that milder cases of social jet lag can have outsized effects.
The solution is likely two-fold: proactive planning on the part of the individual - next time, see Bond at 7:15 - and larger societal shifts around how work and life are structured.
"If future studies replicate what we found here, then we may need to consider as a society how modern work and social obligations are affecting our sleep and health," study co-author Patricia M. Wong said in a release, adding that there might be benefits to "workplace education to help employees and their families make informed decisions about structuring their schedules, and policies to encourage employers to consider these issues."