As the Government announces GPs should start to prescribe cycling Margaret McCartney examines the evidence for exercise referrals with Harry Rutter, Professor of Global Health at the University of Bath. Temperature checks are popping up in bars, restaurants and receptions but do they work or are they giving false reassurance? Plus while the pandemic progresses Professor Carl Heneghan explains another type of false result, that the chance of false positive tests go up. Navjoyt Ladher, Head of Education at the BMJ, talks us through two highly topical terms - specificity and sensitivity. Amateur choirs have been closed due to Covid-19. Margaret talks to Professor Jackie Cassell who is currently researching what aspect of choirs congregating is particularly dangerous and whether the singing is actually a red herring. Producer: Erika Wright Studio Manager: John Boland