Jet Lag: Phase-Shifting the Clock with Timed Light and Melatonin
Summary
Timed bright light and low-dose melatonin, applied **in the right direction**, genuinely speed your body clock's re-entrainment after crossing time zones — but the direction is the whole game (light and melatonin shift the clock the opposite way depending on *when* you take them, so wrong-timing makes jet lag worse), eastward travel is harder than westward, and even done perfectly the protocol *accelerates and softens* recovery rather than eliminating it — you still need roughly a day per time zone crossed. ---