Doctors' Notes: Caffeine

Chris and Xand take an extra caffeine shot as they continue their conversation with Professor Andy Smith, an Occupational and Health Psychologist at Cardiff University. Can caffeine really boost sports performance and if so, by how much? Why is caffeine so dangerous when mixed with alcohol? And what were the 'caffeine wars'?

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Presenters: Drs Chris and Xand van Tulleken

Guest: Professor Andy Smith

Producer: Jo Rowntree

Executive Producer: Rami Tzabar

Editor: Kirsten Lass

Assistant Producer: Maia Miller-Lewis

Assistant Producer and Researcher: William Hornbrook

Tech Lead: Reuben Huxtable

Social Media: Leon Gower

Digital Lead: Richard Berry

Composer: Phoebe McFarlane

Sound Design: Melvin Rickarby

At the BBC:

Assistant Commissioner: Greg Smith

Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.