Kranthi Vistakula models a Climaware Contrast Relief System elbow wrap by Dharma Innovations, during the Consumer Electronics Show (CES) in Las Vegas Jan 9, 2013. The system uses technology developed at Massachusetts Institute of Technology and can cool wraps to 38 Fahrenheit (3.3 Celsius) or heat them to 140 Fahrenheit (60 Celsius) in seconds, Vistakula said. [Photo/Agencies]

Claire Hobean, operations manager for Re-Time, models the Re-Timer during the Consumer Electronics Show (CES) in Las Vegas Jan 9, 2013. The product helps reset your body clock by shining a green 500 nanometer light over your eyes. The product is beneficial for frequent fliers and shift workers, she said. The Australian company just released the Re-Timer in Australia for $282.67 (AUD$273.90) and will launch in the US this week. [Photo/Agencies]