Poor posture plays a crucial role in this connection. Imagine slouching on the couch or hunching over a desk for hours on end. This posture places excessive stress on muscles, joints, and tissues, throwing off your body's balance and disrupting sleep. Moreover, poor posture restricts chest movement, making it challenging to take deep breaths. As a result, your body goes into "fight-or-flight" mode, releasing stress hormones like cortisol and adrenaline. This extra pressure strains the adrenal glands, contributing to adrenal fatigue.