Why your brain stops working when you get tired Lack of sleep makes cell...
Why your brain stops working when you get tired Lack of sleep makes cells lose the ability to talk to each other If you are always losing your keys in the morning or walking out of the house without your mobile phone, sleep deprivation could be to blame. A study has found a lack of sleep makes us feel foggy for a reason: brain cells lose their ability to communicate with each other when we're tired. Temporary mental lapses are now believed to occur when these cells struggle to translate visual information into conscious thought. It means if a bunch of keys are in front of someone, they could walk past without picking them up. Brain cells, called neurons, were found to fire more weakly and take longer to respond in a study of 12 people kept awake all night. Neurology professor Dr Itzhak Fried, from the University of California, Los Angeles, who was involved in the study, said: 'We discovered that starving the body of sleep also robs neurons of the ability to function pr...