Have you ever shivered on a cold day? Felt a little light-headed when you stood up too fast? I’m sure you’ve broken a sweat while doing your PACE exercises, right?
In all these situations, what you’re feeling is your body trying to return itself to a “normal” state. In medical terms, we call it homeostasis – a fancy way of saying that your body is reacting to its environment and trying to get back within its natural chemical, hormonal and temperature ranges.
For example, when your energy levels are low, the conventional wisdom would tell you that your hunger hormones (like leptin and insulin) signal your body to “eat more, expend less.” And when you’ve eaten enough, your hormones should tell you that you’ve had enough.