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While the causes of jet lag are well-understood, minimal useful advice reaches travelers and, unfortunately, the information they do receive is often incorrect

We try to treat the symptoms of jet lag using different tactics, but these don't address the underlying problem

  • Travel in business class
  • Stay at 5-star hotels
  • Choose hotels with "sleep benefits"
  • Use sleep medication
  • Use stimulants
  • Schedule recovery days after a trip
  • Follow generic advice from non-experts
  • Trust airplane "jet lag lighting"


What can we do to eliminate jet lag?


Timeshifter is based on the latest research in sleep and circadian neuroscience, and offers personalized advice based on your sleep pattern, circadian rhythm, flight schedule, and whether you have chosen to use melatonin or caffeine to adjust faster to the new time zone. Once a flight plan has been entered, the algorithm evaluates over 1,000 different variants of each plan and chooses the one that’s most appropriate for you, providing greater personalization and therefore improved effectiveness and compliance.

It's as simple as taking small actions at specific times. "See bright light", "avoid light", "take a nap", "go to sleep", etc. All the activities are familiar, but in order to speed up the adjustment to a new time zone, the timing of each is critical.

Select scientific studies supporting the Timeshifter approach

There is now overwhelming evidence that the human circadian pacemaker is exquisitely sensitive to light as a circadian synchronizer and that light is the primary circadian synchronizer in humans.
— Czeisler & Gooley, Cold Spring Harbor Symposia on Quantitative Biology, Volume LXXII, 2007
Strategic naps can be used effectively to promote performance and alertness in operational settings.
— Rosekind et al., Journal of Sleep Research, 4(S2), 1995
Melatonin is remarkably effective in preventing or reducing jet lag, and occasional short-term use appears to be safe.
— Herxheimer & Petrie, Melatonin for the prevention and treatment of jet lag', Cochrane Database of Systematic Reviews, Issue 2, 2002
High-frequency low-dose caffeine administration is effective in countering the detrimental performance effects of extended wakefulness.
— Wyatt et al., Sleep, 27(3), 2004

Jet lag affects millions of travelers each day

U.S. and foreign air carriers transported 217.3 million passengers between the United States and the rest of the world for the year-ended March 2017, up 5% from a year earlier.
— U.S. Department of Transportation (Sep 2017)

Not arriving at your destination feeling your best can have significant consequences

  • Business: Low productivity + bad decisions + poor health
  • Sport: Injuries + losing
  • Vacation: Slow vacation start + low productivity on return

Press inquiries
+1 212 271 0120