Jet-lag can affect performance at work and kill productivity but, with HumanCharger, travellers can beat jet-lag in half the usual time. HumanCharger alleviates the symptoms of jetlag by directing 12-minute beams of
UV-free, blue-enriched bright light at the cranium through two earbuds. A clinical trial published in the medical journal Aerospace Medicine and Human Performance found that travellers who used the HumanCharger four times, at two-hour intervals, recovered from trans-Atlantic jet-lag twice as fast as the placebo control group. A smartphone app helps travellers optimise headset usage.