Doubt Diaries

Dr Ellen Langer has spent over forty years at Harvard reshaping how we think about thinking. She is the longest-serving professor of psychology there and was the first woman ever tenured in the department. Her research has shown we can quite literall... more

Lindsey Jacobellis is the most decorated female snowboarder of all time - two Olympic golds, six world championships, thirty-one World Cup gold medals. She is also the woman who, aged twenty, on live television, made a split-second mistake at her fir... more

Chase Hughes spent twenty years training CIA operatives in persuasion and lie detection. He is now widely described as the world’s number one expert on body language and behaviour, hosts YouTube’s The Behaviour Panel, and Dr Phil wrote a chapter of h... more

Astrid Tuminez is the first ever female President of Utah Valley University. She grew up in a slum in the Philippines and on her first day of school couldn’t spell her own name. By the end of the year she was top of the class. She would later go to H... more

Herminia Ibarra is Professor of Organizational Behavior at London Business School and has held tenured positions at INSEAD and Harvard. She has been named one of the most influential business thinkers in the world, and her work on career change is re... more

Dr Lisa Orbé-Austin earned her PhD in Counseling Psychology from Columbia and has spent her career researching imposter syndrome and how to dismantle it. She has been featured on The Today Show, Good Morning America and NBC News, and is the co-author... more

Wim Hof - known globally as The Iceman - holds twenty-six world records for what he can do in extreme cold. He has run a half marathon above the Arctic Circle barefoot. He has scaled Mount Everest in shorts. He arrived at the recording so full of ene... more

Dr Caroline Leaf is a cognitive neuroscientist with three decades of research on the mind-brain connection. She is the author of Cleaning Up Your Mental Mess and other bestsellers, and has been featured in Vogue, Forbes and the BBC. We talk about why... more