Why is the parasympathetic division of the ANS considered the "rest-and-digest" division? The parasympathetic division causes release of glucose from the liver for energy. Parasympathetic responses cause airways to dilate, allowing faster movement of air into and out of the lungs. Parasympathetic responses conserve and restore the body's energy. Parasympathetic responses slow down movement of food through the digestive organs.

The parasympathetic division of the autonomic nervous system (ANS) is often dubbed the "rest-and-digest" division because it promotes bodily functions that occur when we are relaxed and not under stress. When activated, this division enhances digestion, stimulates the salivary glands, and encourages the absorption of nutrients, allowing the body to recover and replenish its energy stores. It’s all about restoration and maintenance, helping your body unwind and heal! In real life, when you engage in activities like yoga, meditation, or even just taking a moment to breathe deeply, you're activating your parasympathetic system. This leads to a drop in stress hormones, a slower heart rate, and improved digestion. So, next time you enjoy a leisurely meal or spend some time unwinding with a good book, you're not just relaxing; you're giving your body the chance to thrive and rejuvenate!