In 2023, lead poisoning killed more people than all active wars, natural disasters, road accidents, HIV, and malaria combined.
Snapshot · TED Talks Daily
In 2023, lead poisoning killed more people than all active wars, natural disasters, road accidents, HIV, and malaria combined.
Where this was said
At 0:21 · chapter starts 0:00
Elise Hu wastes no time setting the stakes: lead poisoning, a problem most Americans have filed away as history, is still actively destroying children's minds and bodies worldwide. She introduces Drew McCartor as the head of Pure Earth, a 2025 TED Audacious Project grantee working to prevent exposure to toxic pollutants globally. With a teaser of the key numbers — 2 million IQ points permanently lost in children every day, and more deaths than all wars, natural disasters, road accidents, HIV, and malaria combined — she primes listeners for a talk that is equal parts alarming and optimistic. The framing is deliberate: this is not a hopeless story, because Pure Earth has a proven model already working in more than 20 countries. Hu also promises a post-talk conversation with Audacious Project's Hasiba Haqq on why this work resonates even in places that think they've moved past lead as an issue.
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Cold exposure has good short-term alertness benefits but the evidence base for long-term health benefits is much weaker than popularly believed.
In a randomized study of 20 habit-formation techniques run on hundreds of people, almost none of the techniques produced statistically meaningful results.
People given a tiny-habit fallback option (e.g. 10 squats instead of gym) were actually MORE successful at completing the full habit, not less.
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A study found that simply scheduling enjoyable activities was as effective as standard cognitive behavioral therapy for depression, leading to its own therapy called behavioral activation.
The 'worry time' technique — deferring all worries to a designated time of day — helps people realize they have more control over worry than they thought and reveals it is less useful than it feels.
A study found that participants told to try to stay awake while in bed fell asleep faster than participants told to try to sleep — illustrating the paradox of direct effort.
Spencer Greenberg reduced his severe social anxiety dramatically in roughly 6 months through a structured exposure therapy hierarchy, culminating in asking strangers for hugs.
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