Instant Genius is a bite-sized masterclass in podcast form. And in this episode, we're exploring the privacy of your brain.

Why? In the not-too-distant future, we could all be wearing wearables that scan our brain waves, understanding how we feel, think and act. Before then, author Nita Farahany argues that we need to rethink our rules for privacy to include our brains.

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Alex is a staff writer at BBC Science Focus. He has worked for a number of brands covering technology and science with an interest in consumer tech, robotics, AI and future technology.