The human body is constantly evolving. For most of us, modern life has removed the acute stress of threats like predators. Our bodies are no longer optimized for outrunning wooly mammoths. They’re more conditioned for activities like watching TV.
When there isn’t an urgent need for survival, our bodies store energy for later use. And for many of us, “later” never comes.
The good news is that our bodies can still respond to challenges that we impose upon ourselves. Under duress, our bodies change by releasing hormones and adjusting temperature. For example, we can teach our bodies to withstand extreme temperatures—a skill that can help us combat chronic disease and injury.
Learn how you can push your limits and reap the rewards with our Instaread on What Doesn’t Kill Us, now available in the app.