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Jonathan Haidt
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Jonathan Haidt
@JonHaidt
Social psychologist at NYU-Stern, working to roll back the phone-based childhood. Please visit anxiousgeneration.com & afterbabel.com
New York City
JonathanHaidt.com
Joined January 2010
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466.9K
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    Jonathan Haidt
    @JonHaidt
    Dec 6, 2023
    As a professor who favors free speech on campus, I can sympathize with the "nuanced" answers given by U. presidents yesterday, about whether calls to attack or wipe out Israel violate campus speech policies. What offends me is that since 2015, universities have been so quick to
    user avatar
    Bill Ackman
    @BillAckman
    Dec 5, 2023
    The presidents of @Harvard, @MIT, and @Penn were all asked the following question under oath at today’s congressional hearing on antisemitism: Does calling for the genocide of Jews violate [your university’s] code of conduct or rules regarding bullying or harassment? The
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    Jonathan Haidt
    @JonHaidt
    Oct 24, 2024
    Before the 1990s, kids experienced more risk, more thrills, more physical injuries, and fewer psychological injuries than they do today. Kids had more freedom to make mistakes and learn from them. We have forgotten that kids are antifragile.
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    Nick Gillespie
    @nickgillespie
    Oct 24, 2024
    Fully 50 percent of a '70s boyhood was spent building bike jumps. The other 50 percent was spent recovering from broken bones from using bike jumps.
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    Templar⚔️
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    Templar⚔️
    890K
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    Jonathan Haidt
    @JonHaidt
    Mar 14, 2025
    A stunning essay in the FT on the international decline in the ability to read, reason, focus, and learn new things. It began or accelerated in the early 2010s. It's hitting teens AND adults. Self-report and objective scores. by @jburnmurdoch ft.com/content/a8016c…
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    Jonathan Haidt
    @JonHaidt
    Nov 26, 2023
    New Washington Post editorial: All schools should go phone free. Cites stunning stat that 97% of teens say they use their phones during school hours, esp. for TikTok. Phones are kryptonite for learning. Parents: please send the editorial to school admins washingtonpost.com/opinions/2023/…
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    Jonathan Haidt
    @JonHaidt
    Jan 27, 2025
    A boys' school makes boy-friendly changes and gets great results! Some are as simple as opening the playground for 20 minutes before school starts. They drew on @LetGrowOrg for our "play club" program edweek.org/leadership/wha…
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    949K
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    Jonathan Haidt
    @JonHaidt
    Mar 31, 2024
    A review in Nature, by @candice_odgers, asserts that I have mistaken correlation for causation and that “there is no evidence that using these platforms is rewiring children’s brains or driving an epidemic of mental illness.” Both of these assertions are untrue.
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    Jonathan Haidt
    @JonHaidt
    Sep 12, 2025
    We must repudiate the idea that "speech can be violence" once and for all. @glukianoff and I wrote about the dangers of promoting this idea on college campuses back in 2017, in @TheAtlantic: theatlantic.com/education/arch…
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    Jonathan Haidt
    @JonHaidt
    Jan 14, 2021
    It's official, @AndrewYang is running for mayor of NYC. I think he'll make a great mayor, bringing innovative policies evaluated empirically, not driven by ideology. I'm voting for him.
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    Andrew Yang🧢⬆️🇺🇸
    @AndrewYang
    Jan 14, 2021
    I moved to New York City 25 years ago. I came of age, fell in love, and became a father here. Seeing our City in so much pain breaks my heart. Let’s fight for a future New York City that we can be proud of – together. Join us at YangforNY.com
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    Jonathan Haidt
    @JonHaidt
    Dec 13, 2023
    Here is a 14th explanation for the teen mental health crisis which does not work: parents are increasingly abusive since 2010 (they are not). Nobody has yet proposed an explanation for the crisis that works--especially internationally-- other than the rapid teen transition from
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    1.9M
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    Jonathan Haidt
    @JonHaidt
    Mar 5, 2025
    Thank you Nancy, this is so sad. This is going straight into my lectures.
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    Nancy French
    @NancyAFrench
    Mar 5, 2025
    This is so heart breaking. I’m at a new McDonalds in Franklin, TN and look at their “play place” for children. Two screens/two chairs. 😭😭😭
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    356K
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    Jonathan Haidt
    @JonHaidt
    Mar 9, 2023
    There was no sign of a teen mental illness epidemic until around 2012. Then liberal girls' rates started increasing. Then everyone else. Why? @glukianoff nailed it: Reverse CBT, as I explain here: jonathanhaidt.substack.com/p/mental-healt…
    2.8M
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    Jonathan Haidt
    @JonHaidt
    Oct 8, 2023
    I stand with Israel
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    454K
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    Jonathan Haidt
    @JonHaidt
    Jan 6, 2023
    As professional societies become more ideological some will discipline members for statements that depart from the dominant ideology. This will undermine trust in the profession, as Ontario College of Psychologists is now doing with attempt to punish @jordanbpeterson for tweets
    965K
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    Jonathan Haidt
    @JonHaidt
    Jun 21, 2023
    The "nation's report card" just came out. Scores dropping since 2020. But actually, 40 years of progress reversed in.... 2012, like so much else. Get phones out of schools now. nationsreportcard.gov/highlights/ltt…
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    2.8M

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