Sleep experts claim making people start work before 9am is 'torture'.Working nine-to-five leaves bodies exhausted and stressed as a result of sleep deprivation, says Dr Paul Kelley.The Oxford University academic said it poses a threat to performance until the age of 55, when humans start needing less sleep, according to the Daily Mail.Dr Kelley, an honorary clinical research fellow at Oxford University's Sleep and Circadian Neuroscience Institute, said there was a need for society to change work...
