OK - What is the deal with stress, adrenal fatigue and sleep and what do they have in common? The “fight or flight” syndrome – you’ve heard of it, right? Accompanied with the image of the saber-toothed tiger dashing after a hunter, getting ready to attack. I’m sure we all have experienced this right? In modern times, we’re not literally in that frantic position, but our bodies are often reacting as if we were fighting for our lives. This “flight or fight” response is controlled by the adrenal glands and takes over when we are stressed.