Vaccine claims, Alzheimer's treatment and Tim's Parkrun times

John Campbell, a YouTuber whose posts get millions of views, has made claims about excess deaths and the Covid vaccine. We show why he's incorrect. Also will a much-vaunted new treatment for Alzheimer's really change lives and how much longer can Tim expect his Parkrun times to improve? We look at the trends – and the rest of the team’s times.

Om Podcasten

Tim Harford and the More or Less team try to make sense of the statistics which surround us. From BBC Radio 4