Garrett (garote) wrote,

A neat thing I learned today

It's all down to a simple molecular process, happening a trillion times over inside your body:

This process, in a nutshell, is why long-distance bicyclists don't stand up in their pedals, and never attempt to "power their way up" a hill. If you have, say, 2000 calories of food percolating in your body and you need to ride as far as you can, burning those 2000 calories in a breathless rush will get you 30 miles -- but burning them aerobically will get you 90 miles or more.
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