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The Incredible Secrets Hidden in Your Immune System | Beck Brachman | TED

Your immune system keeps a record of everything it’s ever fought, from the common cold to chronic disease. Neuroscientist and TED Fellow Beck Brachman explains how, by decoding this archive, scientists may be able to identify the root causes — and thus deduce the cures — of devastating illnesses like multiple sclerosis and schizophrenia, potentially…

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Your immune system keeps a record of everything it’s ever fought, from the common cold to chronic disease. Neuroscientist and TED Fellow Beck Brachman explains how, by decoding this archive, scientists may be able to identify the root causes — and thus deduce the cures — of devastating illnesses like multiple sclerosis and schizophrenia, potentially one day taking the “chronic” out of “chronic disease.” (Recorded at TED2025 on April 9, 2025)

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14 Comments

14 Comments

  1. @zhenups4133

    September 28, 2025 at 11:04 am

    Me first

  2. @LoriMcalroy

    September 28, 2025 at 11:09 am

    Second

  3. @LoriMcalroy

    September 28, 2025 at 11:13 am

    👏

  4. @ramakrishnaparitala6777

    September 28, 2025 at 11:14 am

    Me second

  5. @jmslade7

    September 28, 2025 at 11:16 am

    💜❤️💚🖤💛💜

  6. @lillired857

    September 28, 2025 at 12:01 pm

    My Dad had MS, andI have been exposed to Epstein Barr twice, in my teens, and I was not careful. So Im either a carrier, or have some kind of natural immunity. Maybe my blood could help a relative!

  7. @mondaypositivitea

    September 28, 2025 at 12:35 pm

    It’s incredible how the immune system isn’t just about fighting off illness but about creating balance, memory, and resilience. What struck me while watching this is how much it parallels our inner life, the way we heal emotionally also depends on balance, rest, and giving ourselves the right ‘nutrients,’ whether that’s kindness, boundaries, or self-love. The body and mind really do reflect one another in the most powerful ways.

  8. @mando8222

    September 28, 2025 at 12:51 pm

    Thank you Miss Becky!

  9. @kerrykennedy1979

    September 28, 2025 at 11:24 pm

    Forensic immunology! Amazing news.What hope this brings! Congratulations and thank you!

  10. @TheContrariann

    September 29, 2025 at 3:35 am

    Why is this a 4 minute video, and not a 14 minutes or 40 minutes video? Someone working lifetime on this thing can surely speak on it for -an hour- 15 minutes at least. Its TED!

    • @BonnieShadow33

      September 29, 2025 at 6:06 pm

      What additional information would you have her share? What burning questions would you ask her if you could? What’s missing?

      Or do you somehow think a 4 1/2 min. talk somehow is less “worthy” of TED, because you value quantity over quality?

  11. @HAILÚAHIỆP

    September 29, 2025 at 4:21 am

    🎉🎉🎉🎉

  12. @lifemotivation6789

    September 29, 2025 at 7:28 am

    Incredible breakthrough! 🔬 The link between Epstein-Barr virus and multiple sclerosis shows just how powerful our immune system’s memory really is. ‘Immunological forensics’ could open a whole new era in understanding and treating chronic diseases. Truly fascinating research!

  13. @平和-v1z

    September 29, 2025 at 3:27 pm

    Fascinating, great talk!

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Science & Technology

How to handle layoffs with compassion with Ayal Yogev, Anjuna

This week’s guest is Ayal Yogev, co-founder and CEO of Anjuna Security, who has experienced both sides of the startup journey: scaling quickly during the boom years and then making the incredibly difficult decision to lay off a significant portion of his team when the market shifted. From growing to 75 employees to scaling back…

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This week’s guest is Ayal Yogev, co-founder and CEO of Anjuna Security, who has experienced both sides of the startup journey: scaling quickly during the boom years and then making the incredibly difficult decision to lay off a significant portion of his team when the market shifted.

From growing to 75 employees to scaling back and rebuilding, Yogev learned firsthand that the hardest part of leadership isn’t hiring fast, it’s making tough decisions with care, transparency, and integrity.

In this episode, Isabelle Johannessen and Yogev unpack what it really means to lead through layoffs with compassion and how founders can support their teams even in the most challenging moments. They also explore the lessons learned from scaling too quickly and how to build a more resilient company the second time around.

Apply to Startup Battlefield: We are looking for early-stage companies that have an MVP. So nominate a founder (or yourself): techcrunch.com/apply. Be sure to say you heard about Startup Battlefield from the Build Mode podcast.
TechCrunch Disrupt: If you’re thinking about applying to Startup Battlefield, then October 13 to 15 in San Francisco, we’re back for TechCrunch Disrupt, where the Startup Battlefield 200 takes the stage. So if you want to cheer them on, or just network with 1000s of founders, VCs, and tech enthusiasts, then grab your tickets.

Use code buildmode15 for 15% off any ticket type.

New episodes of Build Mode drop every Thursday. Hosted by Isabelle Johannessen. Produced and edited by Maggie Nye. Audience development led by Morgan Little. Special thanks to the Foundry and Cheddar video teams.

Chapters:
00:00 We grew too fast
02:30 What Anjuna actually does
04:45 Scaling the team quickly
06:10 The market crash hits
09:40 Handling layoffs with empathy
12:10 Supporting employees the right way
15:30 Why culture matters in crisis
20:50 The hiring mistake founders make
27:40 When to scale your sales team
34:40 Rebuilding after layoffs

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Science & Technology

Why Snowflake is no longer just a data warehouse

Snowflake is betting that the future of AI isn’t just analyzing data, it’s acting on it. That means a shift away from chatbots and toward autonomous agents that can actually get work done. And Snowflake is reorganizing fast to keep up, from shipping hundreds of AI features to restructuring teams along the way. On this…

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Snowflake is betting that the future of AI isn’t just analyzing data, it’s acting on it. That means a shift away from chatbots and toward autonomous agents that can actually get work done. And Snowflake is reorganizing fast to keep up, from shipping hundreds of AI features to restructuring teams along the way.

On this episode of TechCrunch’s Equity podcast, Rebecca Bellan sits down with Snowflake CEO Sridhar Ramaswamy to unpack the company’s transformation and what it signals about where AI is headed next.

Subscribe to Equity on YouTube, Apple Podcasts, Overcast, Spotify, and all the casts. You also can follow Equity on X and Threads, at @EquityPod.

Chapters:
00:00 Intro
00:17 Snowflake’s AI shift and agentic future
01:45 Why 2026 marks the end of chatbots
04:09 Cortex Code, Snowflake Intelligence, and new products
06:09 Who benefits: non-technical users & enterprises
07:35 Adoption challenges and why AI pilots fail
12:11 How AI is reshaping jobs and skills
14:39 Layoffs, automation, and the future of documentation
18:37 Snowflake’s evolution into an AI platform
21:04 Competition: Databricks, hyperscalers, and AI giants
25:01 Outro

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Popular Science

The Experiment That Tried to Weigh the Human Soul

It’s a little complicated to weigh a dying person on a hospital bed, but that didn’t deter Duncan MacDougall. In the early 20th century, MacDougall’s unique bed-scale detected that 21 grams left the human body at the moment of death. He had finally discovered it: the weigh of the human soul … or so he…

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It’s a little complicated to weigh a dying person on a hospital bed, but that didn’t deter Duncan MacDougall. In the early 20th century, MacDougall’s unique bed-scale detected that 21 grams left the human body at the moment of death.

He had finally discovered it: the weigh of the human soul … or so he thought.

Read more about the cultural legacy of MacDougall’s flawed but influential experiment:

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