What Happens to Your Body on Everest Without Oxygen?

What happens inside your body at the top of Mount Everest without an oxygen tank? All sources below. ▶ All full episodes:    • What Happens to Your Body? Full Episodes   🔔 Subscribe for new body explainers every week:    / @redlinebody   This animated explainer follows your lungs, blood, kidneys, heart and brain as you climb: why the air is still 21% oxygen but every breath comes up short, why your brain is the first to notice, the tiny sensors in your neck that crank up your breathing, why your kidneys make you pee and order new blood with the hormone EPO, why you stop breathing at night, what happens in the death zone above 26,000 feet, and the gene that lets some people live high without thick blood. ⏱️ CHAPTERS 0:00 Dropped on the summit 0:29 The air isn't empty. It's thin. 1:00 The first minutes: the oxygen shortage 2:07 The first days: the emergency response 3:42 The first weeks: building new blood 4:46 The death zone 6:41 The twist: bodies built for altitude 7:13 What this means for you 7:44 The full picture 📚 SOURCES Barometric pressure on the summit (≈⅓ of sea level): West et al. (1983), Journal of Applied Physiology. https://doi.org/10.1152/jappl.1983.54... Arterial blood gases in climbers on Everest: Grocott et al. (2009), New England Journal of Medicine. https://doi.org/10.1056/NEJMoa0801581 Acute mountain sickness in 25% of Colorado visitors: Honigman et al. (1993), Annals of Internal Medicine. https://doi.org/10.7326/0003-4819-118... Prevention and treatment of altitude illness (AMS, HAPE, HACE): Luks et al. (2019), Wilderness & Environmental Medicine. https://doi.org/10.1016/j.wem.2019.04... High-altitude adaptation in Tibetans (EPAS1): Yi et al. (2010), Science. https://doi.org/10.1126/science.1190371 Time of useful consciousness: FAA Advisory Circular AC 61-107B. ⚠️ Educational, not medical advice. If someone at altitude is confused, stumbling or breathless at rest, descend and get help. 🎨 Animation & narration: Redline Body #WhatIf #Animation #everest #altitude #altitudesickness #humanbody #science #mountains #hiking #skiing #oxygen #physiology #biology #explained #education #redlinebody