Episode Details

Jet lag isn't just about time zones. FlyKitt founder Andrew Herr is here to explain what flying really does to your body — and how to fight back.

Full show notes and resources can be found here: jordanharbinger.com/1393

What We Discuss with Andrew Herr:

• Flying wrecks you because of flight inflammation — cabins pressurized to about 8,000 feet mean 26% less air per breath, and rapid pressure changes trigger an immune response akin to mild altitude and decompression sickness. Brain fog, swollen feet, and even midair anxiety follow.
• Cabin air is a mixed bag — HEPA filters catch most germs unless you're within two rows of a sick passenger, but engine startup exhaust, oil fume events, and sprayed insecticides slip through. When possible, fly a 787 (no bleed air) or an A350, both pressurized to about 6,000 feet.
• Jet lag isn't just about time zones — inflammation disrupts sleep and blocks your circadian rhythm from shifting, which is why a long flight with a small time change still hurts. Melatonin alone won't fix it; light, meal timing, sleep timing, and supplements must work together.
• So-called immune boosters like zinc and vitamin C rarely help unless you're deficient — most people need a calmer immune system, not a boosted one. Omega-3s and polyphenols help; salty airline food and alcohol hurt. Abroad, spice and garlic won't kill bacteria, but cooking and salt help.
• Plan for how you want to feel when you arrive. Work out or sauna a few hours before flying, skip salty meals and alcohol, and drink plenty of water. At the hotel, request fragrance-free cleaning, set the room near 67 degrees, and clip curtain gaps shut with skirt hangers.
• And much more...

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