Consider what your body is adapted to over millions of years of evolutionary history. Go back in time ten thousand years, a blip in that history but to a lifestyle that is reflective of the other millions of years.

Your ancestors spent lots of time outside, did physical activity all day, ate whole unprocessed food, didn’t have screens and cars and light switches, and didn’t sit down for huge periods of time.

Science is finding that as we deviate from those things we develop illness, our bodies don’t handle it well. Your body needs to move a lot to work properly, sitting or lying down all day is not what it is adapted to and its systems break down. Blood doesn’t flow properly, raising clot risk. Bones soften, muscles atrophy, postural issues develop, important hormones get out of whack, risks of metabolic syndrome increase, heck even sexual function deteriorates.

Thing is, people are adapted to an environment where we HAD to be active and work a lot, and we have an instinct to minimize energy expenditure within the framework to conserve calories. If the natural situation where a lot of work is inevitable is gone, turns out we can often be pretty lazy and not move much at all. Fighting that instinct is super hard.