Advertising bosses have welcomed long-awaited “clarification” after months of rollercoaster changes to the government’s incoming HFSS ban saw final guidance published yesterday by watchdogs. With ...

The velocity of light in vacuum, c, is approximately 3 × 10 8 m s −1, fast enough to make 7.5 round-the-world trips in a single second, and to move a distance of 300 mm in 1 ns. This ultrahigh speed ...

Lewis Wallis and Dr Samuel Dicken summarise the major developments from 2025 and reflect on what we might expect in the next year as science and policy continue to evolve around ultra-processed foods ...