Sludge Blood: The Physics of High-Altitude Circulation

Why Hydration is Your Best Gear on Everest

Thin Air, Thick Blood

As you climb toward the Mount Everest summit, your body produces more red blood cells, which can make your blood as thick as syrup. Understanding this physics is vital for Everest trekking safety.

The Stroke Risk

Thick blood is harder to pump, increasing the risk of clots and strokes. This is why many Mount Everest expedition members take baby aspirin to help maintain circulation during the summit push.

Trekker drinking water with snowy peaks
The Power of 4 Liters

The only natural way to thin your blood is to stay hyper-hydrated. Drinking 4-5 liters of water a day is a full-time job at Everest Base Camp but is essential for reaching the Mount Everest summit safely.

Peripheral Cold

Thick blood flows slowly to your fingers and toes, which is why dehydration significantly increases the risk of frostbite on any Mount Everest expedition. Drink to stay warm.

Liquid Life

Your blood is the transport system for your survival. Keep it flowing by prioritizing hydration every single day of your Everest trekking journey.