8 Steps to Wellbeing - Sleep for wellbeing

Why sleep matters for the brain

• Clears brain waste: During deep sleep, the brain removes toxic proteins which are linked to Alzheimer’s disease. 
• Supports memory consolidation: Sleep helps store and organise new information. 
• Regulates mood and stress: Poor sleep increases cortisol, which can damage neurons over time. 
• Maintains vascular health: Chronic sleep problems are linked to high blood pressure, diabetes, and obesity, which increase dementia risk. 

Practical tips for healthy sleep 

• Aim for 7–9 hours of sleep per night. 
• Avoid caffeine, alcohol, and heavy meals close to bedtime. 
• Limit screen time before bed; blue light can interfere with melatonin production.