A simple blood test is what it will take to know if you are sleep deprived. These are good times to live right? Damn it is! A research team bothered about the hazards of drowsy driving which is dangerous for both the drivers and the other people on road has developed a blood test to examine whether you have skipped a night's sleep. During this study from the Sleep Research Centre at the University of Surrey 36 participants skipped one night of sleep. During the 40-hour period of sleep deprivation the team took blood samples of the individuals and noted