The use of circadian-informed lighting, where artificial lighting is synchronised to the natural biological rhythms or a person's 'body-clock', significantly improves quality of sleep and work ...

All life on Earth is affected by the day-night cycle resulting from the planet's rotation. In line with this, humans are naturally awake during daylight hours, and sleep at night when it is dark.

Night work keeps hospitals open, factories humming and deliveries moving while most people sleep, but a growing body of research suggests that this schedule may quietly chip away at long‑term health.