The Global Burden of Disease Study 2023

The GBD study is the largest and most comprehensive effort to quantify health loss across places and over time, so health systems can be improved and disparities eliminated.
Sleep Special – with Prof Russell Foster

In this special edition of Just One Thing, Dr Michael Mosley interviews Professor Russell Foster, Director of the Sleep and Circadian Neuroscience Institute at the University of Oxford and one of the world’s leading experts on body clocks. In this concise, practical episode, Foster explains how circadian rhythms work, how much sleep we truly need, […]
How Light Regulates the Body Clock

Professor Russell Foster’s research has transformed our understanding of how light shapes human biology. His work identifies a third photoreceptor system in the eye — melanopsin‑containing retinal ganglion cells — that detects blue‑enriched light (~480 nm) and sends powerful signals to the brain’s circadian clock. This system regulates melatonin release, sleep timing, alertness, mood, and […]