Jet lag is not a mystery – it is a circadian misalignment that can be corrected with three precise signals: light, food, and timing. Here is the 24-hour reset protocol that works across any time zone, backed by sleep science and used by frequent flyers.
The three signal hours
Morning light (07:00-09:00 local time) is the most potent resetting agent. As soon as you wake, seek bright outdoor light (or a 10,000-lux lamp if the weather is poor). Ten minutes of daylight tells your suprachiasmatic nucleus that the new day has begun, and cortisol drops, melatonin rises according to the new schedule.
Meal timing (08:00-10:00 and 18:00-20:00) anchors your internal clock. Eat a protein-rich breakfast at the new local morning, and a light dinner at the new local evening. Avoid snacking between those windows; every eating episode resets your peripheral clocks independently of the brain clock, creating the “two-clock” conflict … Read More
