Oct 8, 2026 · 1h 17m
Why flights exhaust the body beyond jet lag
1393: Andrew Herr | Why Travel Leaves You Wrecked (and How to Fix It)
Travel fatigue can reflect cabin conditions, inflammation, disrupted sleep, and clotting risk—not just crossing time zones.
- 1Cabin pressure, reduced oxygen, air contaminants, and immobility can compound the physical stress of flying.
- 2Light, meal timing, sleep conditions, movement, and hydration help address different parts of travel fatigue.
- 3Food safety, supplement skepticism, and hotel adjustments matter when the goal is to return healthier.
Don't miss
Andrew Herr dismantles the idea that travel sickness is just jet lag, linking flying itself to inflammation, swelling, sleep disruption, and clot risk.
The brief
Andrew Herr argues that the exhaustion of flying is not simply jet lag: cabin pressure, reduced oxygen, immobility, and disrupted sleep all add physiological strain.
The conversation examines airplane air, jet exhaust, volatile compounds, and bleed air, with the Boeing 787 highlighted for avoiding engine bleed air in cabin ventilation.
Herr connects flight-related inflammation with leg swelling, oxidative stress, gut disruption, anxiety, and blood-clot risk, then separates those effects from circadian misalignment.
His practical framework combines light, meal timing, sleep, hydration, exercise, supplements, and cooler, darker hotel rooms rather than treating travel fatigue as one problem.
The food-safety discussion cuts through familiar travel myths: spice and garlic do not reliably kill bacteria, while thorough cooking and salt reduce risk.