Exercised

Why Exercise Feels Unnatural

The modern treadmill is a strange contraption that forces us to work hard to get nowhere. When subsistence farmers in remote Kenya first encountered one, their hesitant, awkward movements revealed a fundamental truth: humans never evolved to exercise. For most of our history, physical activity was inseparable from survival, not a voluntary choice. The word "exercise" once referred to arduous labor like plowing, and the first treadmills were Victorian devices for punishing prisoners. Today, we spend our days in chairs and then pay for the privilege of sweating on machines, creating a deep "exercise anxiety." We are told movement is a magic pill, yet we feel a deep-seated instinct to avoid unnecessary exertion, leading to a culture of shaming those who struggle. In reality, conserving calories was a brilliant survival strategy for our ancestors.

This conflict is clarified by looking beyond modern Westerners. The Ironman World Championship, a 140-mile ordeal of high-tech gear and obsessive training, stands in stark contrast to the Tarahumara people of Mexico. They run seventy-mile races in tire-tread sandals, fueled by corn beer and spiritual devotion. At first, they seem to support the "myth of the athletic savage"—the idea that humans in a "state of nature" are effortless super-athletes. But this is a romanticized stereotype. When an elderly Tarahumara man was asked why he didn't run for fun, he was incredulous. To a farmer who works the land by hand, "needless" running is preposterous. They run because it is a sacred, communal necessity.

To find what is truly "normal" for human activity, we must look at hunter-gatherers like the Hadza of Tanzania. A Hadza camp is not a training ground; it is a place of rest. They spend hours sitting, gossiping, and doing light chores. When they move, it is to walk miles for tubers or to track a hunt. While they are about twelve times more active than the average American, their fitness is a byproduct of survival, not a scheduled choice. Evolutionarily, humans are less active than most wild mammals; a hunter-gatherer’s physical activity level is only about double their resting metabolic rate, whereas a wild animal’s is often triple. If a modern person walked just an hour or two a day, they would match the activity level of our ancestors.

Our world has been redesigned to eliminate the need for movement, turning exercise into a weird, modern necessity. We have medicalized and commercialized it, prescribing "doses" of movement to prevent the diseases of civilization. The treadmill is the ultimate symbol of this paradox: a loud, boring machine that forces us to work hard to go nowhere. To a hunter-gatherer, this would seem like madness. Understanding that we are born to be active—but not born to exercise—helps explain why the struggle to stay fit feels so unnatural. It isn’t a character flaw; it’s a normal human instinct.