We frequently talk about mental health as though the mind operates in isolation from the body. In clinical reality, psychological distress is rarely a purely mental event. Mood, anxiety, and cognitive stamina are deeply rooted in physical physiology, governed by neuro-inflammation, gut-microbiome signaling, and autonomic nervous system tone

We often treat sleep as something we do, a habit to manage or a schedule to optimise. But sleep isn't merely a passive state of rest; it is an active, highly regulated neurological process. Every night, your brain relies on deep, non-REM sleep to activate the glymphatic system (its internal waste-clearance network) to sweep away metabolic waste products accumulated throughout the day.