Using your smartphone, tablet or pretty much any other technological device at night could be making you fat, according to science.
"A single three-hour exposure to blue-enriched light in the evening acutely impacted hunger and glucose metabolism," the study's co-author Ivy Cheung said.
Add that to the fact your iPhone's blue light is stopping you sleeping and you've got yourself a world of problems.
Earlier this year academics at the University of Hertfordshire found the number of sleep deprived Brits has risen by 50% in just 12 months as people are increasingly using smartphones and computers before bed. And now the sleepless are staying up munching whatever they can find in the fridge too.
If you're anything like us here at MyDaily HQ, you probably spend over an hour scrolling on your iPhone in bed with the light off... And when you finally nod off, your phone takes pride of place under your pillow - just in case something mega important happens during the night.
Perhaps it's time we kicked our digital bedmate out, what d'you reckon? Tell us if you sleep with your phone in bed on Twitter at @MyDailyUK.