Neurotechnology, or devices that let you track your own brain activity, could help you deeply understand your health. But without privacy protections, your innermost thoughts, emotions and desires could be at risk of exploitation, says neurotech and AI ethicist Nita Farahany. She details some of the field's promising potential uses -- like tracking and treating diseases from depression to epilepsy -- and shares concerns about who collects our brain data and how they plan to use it, ultimately calling for the legal recognition of “cognitive liberty” as we connect our brains and minds to technology. If you love watching TED Talks like this one, become a TED Member to support our mission of spreading ideas: ted.com/membership Follow TED! Twitter: twitter.com/TEDTalks Instagram: www.instagram.com/ted Facebook: facebook.com/TED LinkedIn: www.linkedin.com/company/ted-conferences TikTok: www.tiktok.com/@tedtoks The TED Talks channel features talks, performances and original series from the world's leading thinkers and doers. Subscribe to our channel for videos on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. Visit TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more. Watch more: go.ted.com/nitafarahany23 youtu.be/k5jEkTm5GIU TED's videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy: www.ted.com/about/our-organization/our-policies-terms/ted-talks-usage-policy. For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at media-requests.ted.com #TED #TEDTalks #brain

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