Medical experts in the North-East believe they could have found the key to turning back the brain’s biological clock and reverse the effects of dementia and memory loss.Pioneering research at the University of Sunderland has shown that regular exposure to safe low level infra-red light can improve learning performance and kick-start the cognitive function of the brain.The results are a scientific breakthrough as to date medical treatments for dementia can only slow down brain deterioration and now human trials are to start to see if the treatment could provide a cure to illnesses like Alzheimers.