Zothecula writes "You don't need to be an expert in occupational safety to know that worker fatigue is one of the leading causes of workplace accidents — this particularly applies to people who operate heavy machinery or drive for a living. While it would be great if all employees simply took a break when fatigue started setting in, it can sometimes be difficult for people to tell just how tired they really are. That, or they decide that they just want to push through and get the job done, drowsiness be damned. An invention from Australia's EdanSafe, however, takes the guesswork out of the picture. It's called the SmartCap, and it measures employee fatigue in real time by monitoring its wearer's brain waves."