Need further confirmation that an IV drip of 5-Hour Energy is what your body really needs? Look no further than Murata's newfangled fatigue sensor. Demonstrated at CEATEC in front of thousands of jetlagged Americans, Europeans, Easter Islanders and Samoans, this compact device is built by "integrating a photoplethysmographic sensor, which measures a pulse and a blood oxygen saturation level, and electrodes that measure electrocardiogram (ECG)." We're told that the unit measures a fatigue degree (reported on a 1 to 100 scale) based on the "pulse, blood oxygen saturation level and electr
