Memories are slippery things – some are crystal clear, others more like a muddy pool, and some… well, they seem to vanish completely.

Scientists admit that memory is all very complicated, but one piece of the puzzle lies in how we age – we’ll hear the latest research.

Meanwhile, meet the man who digitally logged his every waking moment - and why maybe the secret to happiness isn’t in remembering but in forgetting.

Plus, the case for deleting data from your hard-drive… and from your brain itself.

Guests:

Descripción en español

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