Getting good quality sleep is as important as breathing fresh air, getting enough exercise and following a nutritious diet. Sleep is an essential repair function, supporting the entire body. Links can be made between the delicate balance of sleep, stress and gut health. Poor sleep may cause the body to release more cortisol (stress hormone), as a lack of sleep may trigger a distress response. From the other perspective, stress and anxiety often disrupt sleeping patterns. Early science is also showing an important link between gut health and our circadian rhythm (sleep/wake cycle).