Washington DC, June 1 -- Coffee can help you stay awake, but what does caffeine actually do to your brain once you're asleep? Using AI, a team of researchers has an answer: it affects the brain's 'criticality'.

In a study published in April in Nature Communications Biology, a team of researchers from Universite de Montreal shed new light on how caffeine can modify sleep and influence the brain's recovery -- both physical and cognitive -- overnight.

The research was led by Philipp Tholke, a research trainee at UdeM's Cognitive and Computational Neuroscience Laboratory (CoCo Lab), and co-led by the lab's director Karim Jerbi, a psychology professor and researcher at Mila -- Quebec AI Institute.

Working with sleep-and-ageing psychology pr...