How does your body burn 2000 calories a day without any effort, but running a mile only burns 100 calories?

Question

How does your body burn 2000 calories a day without any effort, but running a mile only burns 100 calories?

In: 7671

Answer 1

Keeping all your muscles and organs running and alive takes a ton of energy, more than you’d think. And humans are adapted to be very efficient at running, taking less energy for a mile than you’d think.

For example, your brain itself burns 20% of the calories you eat. So with 2000/day that’s 400 cal just to keep your brain functioning for a day. Makes sense though, it’s constantly sending out nerve signals and processing data from thousands of sensors.