Studies specifically looking at older adults have found this eastbound disadvantage is often more pronounced, linked again to that reduced and more irregular melatonin rhythm. Finally, even the tools we typically use to reset our body clock become somewhat less effective with age. 6 ways to beat itNone of this means you should resign yourself to a miserable first few days of every trip. Since light is the single strongest cue for resetting your body clock, use it strategically. If you’re travelling east, seek out morning light at your destination and avoid bright evening light.