Social media, and the rate at which the online world is changing, is worrying - especially the speed at which health disinformation can speed around the globe. We look to tech companies for a solution to the problems of their own making - but Heidi Larson, director of the Vaccine Confidence Project, and professor of anthropology, risk and decision science at LSHTM, joins us to explain why we should be cautious about focussing our attention there.

Next on the podcast, research just published in The BMJ looks at the efficacy of exercise at controlling depressive symptoms - but helps finally answer the key question - which exercise works best. Lead author, Michael Noetel, senior lecturer in psychology at the University of Queensland, joins us to explain the research, and how well exercise stacks up against pharmacological treatments.

Finally, while it’s tempting to try and put the pandemic behind us, its effects linger - and many healthcare staff are still dealing with their experience of that time. Rachel Clarke, a palliative care doctor in the UK, joins us to explain why she has felt the need to document the pandemic, first in a book and now in a new TV drama set to air in the UK next week.

06:15 Heidi Larson on vaccine confidence and social media

15:31 Exploring the effectiveness of exercise for depression

26:56 Rachel Clark on seeing her experiences reflected on screen

Reading list

BMJ Collection: How are social media influencing vaccination

Feature: Medical misinformation on social media—are the platforms equipped to be the judge?

Research: Effect of exercise for depression

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