Jet lag

DARPA is planning to develop a "travel adapter" for the human body. Called the ADvanced Acclimation and Protection Tool for Environmental Readiness (ADAPTER), the new program aims to produce a device to help soldiers handle jet lag and diarrhea.

Travel can be a joy, except when jet lag sets in. While light therapy and melatonin have been shown to help the symptoms of the condition, there is no real cure. New research however, might one day make getting over your disrupted body clock as simple as taking a few eye drops.