Sunlight has governed human biology since long before architecture existed. It drives our circadian rhythm, regulating serotonin, cortisol and melatonin — the chemistry behind sleep, mood and alertness. Yet most indoor lighting, including that often used in the care settings where our most vulnerable citizens live, ignores this entirely. The result is measurable: disturbed sleep, night wandering, sundowning, and a heightened risk of falls.

Circadian lighting automatically adjusts in colour and intensity throughout the day, mimicking natural daylight patterns, proactively supporting wellbeing.

The evidence for a different approach is now substantial. Published research shows circadian lighting can reduce daytime napping by 56% and night wandering by 55% for adults living with dementia, while a two-year study of 600 care home residents at Brigham and Women’s Hospital recorded a 43% reduction in falls. At Circadacare, our own deployments have echoed this: evidencing reductions in falls and sundowning symptoms easing within 7–14 days of installation.

But we’re more than just light. We’ve discreetly integrated sensors into our light bulbs, with a powerful AI backend platform. We monitor signs of wellbeing and alert caregivers to change, allowing for intervention before crisis. For example, we can show changes to normal bathroom visit routines or increases in distress levels to trigger further investigation.

The more compelling story is human, not statistical. By easing the heightened end-of-day distress and reducing falls risk, we’ve been able to improve the healthspan of people living with dementia, benefiting the individual, their immediate family and carers.

To find out more and book a personalised demonstration please contact hello(Replace this parenthesis with the @ sign)circadacare.com or call us on 0191 535 9598.