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Steve Downs

@stephenjdowns.bsky.social
252 followers 410 following 82 posts

Co-founder of @buildingh.bsky.social, working to build health into everyday life. Teaching at @itp-ima-nyu.bsky.social and Stanford d.school. Former chief technology and strategy officer at @rwjf.bsky.social.

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Reposted by Steve Downs
Streetsblog USA @usa.streetsblog.org · 7h
Op-Ed: How Urban Planning Can Succeed in America
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Op-Ed: How Urban Planning Can Succeed in America — Streetsblog USA
How should planners identify and emulate success? The best advice on this topic dates back to 1932, when Louis Brandeis described the U.S. states as laboratories of democracy.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 5h
“It is that using AI comes first, and middle school students are increasing their sense of loneliness following the use of AI.”
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 28/09/2026
Terrific piece by @julieebeck.bsky.social in the @theatlantic.com on the social cost of convenience: www.theatlantic.com/culture/2026...
theatlantic.com
One Reason People Are Spending So Much Time Alone
There is a social cost to many modern conveniences.
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Reposted by Steve Downs
David Conroy @conroylab.bsky.social · 28/08/2026
I’m hiring a Manager of Research Operations for my NIH-funded research lab at Michigan. Real ownership — budgets, people, compliance — not admin support. $89K–$104K, Ann Arbor. careers.umich.edu/job_detail/2...
careers.umich.edu
Manager of Research Operations | U-M Careers
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Reposted by Steve Downs
Paris Marx @parismarx.com · 19/08/2026
probably something a government that cares about anything other than maximizing gdp figures would want to get serious about addressing
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Steve Downs @stephenjdowns.bsky.social · 19/08/2026
David Byrne (yes that David Byrne) wrote a prescient piece about this. He pointed out that more and more technology was being applied in the service of eliminating contact between humans. And that it seemed that that should be a conscious choice. www.technologyreview.com/2017/08/15/1...
technologyreview.com
Eliminating the Human
We are beset by—and immersed in—apps and devices that are quietly reducing the amount of meaningful interaction we have with each other.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 18/08/2026
One of the most popular items in our newsletter last week was this excellent piece by @hamiltonnolan.bsky.social on why it’s so important we start to measure — and take action on — economic externalities www.hamiltonnolan.com/p/enshittifi...
hamiltonnolan.com
Enshittification Relies on Broken Economic Math
Pay no attention to the externalities behind the curtain.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 13/08/2026
Our latest newsletter gets into our newly released research on how to measure the health impacts of companies like Netflix and Burger King. Plus: all about inflammation; @drdanasuskind.bsky.social on chatbots and child development; Facebook as a public nuisance & more. mailchi.mp/a481763e847d...
mailchi.mp
Building H: Making It Count
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 12/08/2026
"6330 premature cardiovascular deaths, 11,400 ischemic heart disease cases, 13,600 type 2 diabetes cases, 12.3 million highly annoyed, and 3.3 million with high sleep disturbance" pubmed.ncbi.nlm.nih.gov/42250846/
pubmed.ncbi.nlm.nih.gov
Health burden of transportation noise in the United States: a national assessment with equity analysis - PubMed
The United States has not produced a national noise health burden estimate using disability-adjusted life year methodology. We quantified the population health burden of transportation noise across th...
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Steve Downs @stephenjdowns.bsky.social · 11/08/2026
“…The question is whether we will recognize that our existing social and economic systems are failing to achieve these outcomes, and whether we can act in time to make structural change.“
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Steve Downs @stephenjdowns.bsky.social · 11/08/2026
So good. “The question is not whether it is possible to develop AI in a non-exploitative way, or even whether we can trust AI companies to act in the public interest...
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Erik Nordman @eriknordman.bsky.social · 07/08/2026
🎂Nobel laureate Elinor Ostrom was born on this day in 1933! Ostrom was the first woman to win the Nobel Prize in Economics for her research on "collaborative governance, especially the commons." She showed how communities of users could work together to sustain their shared resources. 1/9
Elinor Ostrom receiving the Nobel Prize in Economics. She is a older white woman with gray hair and glasses, wearing a long batik dyed dress, and holding the certificate and medal (in a box).
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 06/08/2026
“Too often we ignore externalities in part because we don’t know how to measure them. We’ve now shown that calculating these sorts of costs—at the level of the individual company—is both feasible and, given the scale of the impact, worthwhile,” healthpolicy.fsi.stanford.edu/news/what-do...
healthpolicy.fsi.stanford.edu
What Do Your Favorite Brands Actually Cost Society?
Is it possible to measure the impact that food and entertainment have on our health? Researchers believe they've found the formula.
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Steve Downs @stephenjdowns.bsky.social · 05/08/2026
while it’s supposed to cure all diseases, we’re also seeing it used to get people to eat more fast food, spend more time on screens and avoid having to talk to other people, which seems bad?
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Reposted by Steve Downs
Steve Downs @stephenjdowns.bsky.social · 04/08/2026
We all know fast food isn’t great for us. And watching TV isn’t super healthy. Those health impacts add up – and they have a societal cost. But we rarely measure it – and certainly not at the company level. But a new paper shows that we can journals.sagepub.com/eprint/TAMZN...
journals.sagepub.com
Prototyping a Methodology for Estimating the Economic Externalities Resulting From Commercial Products’ Influence on the Health of Their Users - Stephen J. Downs, Sara J. Singer, Carol Passarelli, Ina...
Purpose Determine feasibility of estimating economic externalities associated with influences that products of individual corporations have on their customers’ ...
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
Nice write-up of our new paper from Stanford Health Policy: healthpolicy.fsi.stanford.edu/news/what-do...
healthpolicy.fsi.stanford.edu
What Do Your Favorite Brands Actually Cost Society?
Is it possible to measure the impact that food and entertainment have on our health? Researchers believe they've found the formula.
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
We’re just getting started and we’re pretty excited about where this work at @buildingh.bsky.social could lead. You can read more about the project at www.buildingh.org/economic-measures
buildingh.org
economic measures — BUILDING H
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
The numbers are estimates, and the methodology is pretty basic and still developing, but it’s solidly grounded in epidemiology and a lot of evidence. The key here is that we’ve shown, for some types of products, these estimates are feasible – and given the numbers – important to do.
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
We developed this methodology by prototyping it on 3 companies: Netflix, which we estimated had the largest impact ($32B/yr); Burger King ($4.9B); and Niantic (original makers of Pokémon GO), which had a net positive impact of $322M.
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
With that we calculated the “population attributable fraction,” the share of the prevalence of any of these diseases that can be attributed to use of the company’s products. And then we linked that to $ spent on those diseases each year in the US.
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
Our team at @buildingh.bsky.social – Sara Singer, Carol Passarelli, Inah Golez, Evan Cook and myself – analyzed how certain products affect their users’ diet, physical activity and sleep and how changes in those behaviors affect the risks of developing obesity, depression, CVD, etc.
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
And it shows that those costs can be really large – like billions of $ per year
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Steve Downs @stephenjdowns.bsky.social · 04/08/2026
We all know fast food isn’t great for us. And watching TV isn’t super healthy. Those health impacts add up – and they have a societal cost. But we rarely measure it – and certainly not at the company level. But a new paper shows that we can journals.sagepub.com/eprint/TAMZN...
journals.sagepub.com
Prototyping a Methodology for Estimating the Economic Externalities Resulting From Commercial Products’ Influence on the Health of Their Users - Stephen J. Downs, Sara J. Singer, Carol Passarelli, Ina...
Purpose Determine feasibility of estimating economic externalities associated with influences that products of individual corporations have on their customers’ ...
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 03/08/2026
"Its attempts to upsell Charpentier on extra Snickers for her Blizzard were perfectly polite."
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Reposted by Steve Downs
Julia Belluz @juliabelluz.bsky.social · 27/07/2026
For decades, people have talked about the toxic food environment and how it’s stacked against most people. For decades, little’s changed policy-wise, even in this #maha moment. I increasingly think there’s only one way out. That way is litigation. www.nytimes.com/2026/07/27/o...
nytimes.com
Opinion | Want a Better Food System? Use the Anti-Tobacco Playbook. (Gift Article)
A teenager’s lawsuit against the food industry shows us the path to a better food system.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 29/07/2026
This. Great piece arguing that our failure, not just to price in societal costs that businesses generate, but to not even try, is unacceptable. Product impact on health is a classic example.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 28/07/2026
A popular story from our newsletter last week was this report, from Ben Steverman, in @bloomberg.com, on the "fun shortage" -- the increasing decline of facilities to support recreational, social interaction: www.bloomberg.com/news/feature...
bloomberg.com
The Fun Shortage Is Real, and It’s Making America Miserable
With fewer places to relax and socialize, and steeper prices for entry, having fun is quantifiably harder than it used to be.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 27/07/2026
The most popular story from our newsletter last week was this piece, from Bryan Walsh at @vox.com, on the dramatic gains public for teenagers over the past few decades. And what we might have lost ... www.vox.com/future-perfe...
vox.com
The forgotten success story of America’s teenagers
Today’s teens are much safer than 1990s teens. Why doesn’t anyone talk about it?
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Steve Downs @stephenjdowns.bsky.social · 27/07/2026
This really struck me and it resonates w/ @dkthomp.bsky.social's piece that talked about how managing one's health is becoming a second job (www.derekthompson.org/p/the-cult-o...). Bottom line is that it's become hard to be healthy in the US -- it takes hard work and constant vigilance.
derekthompson.org
Why the Healthiest Generation Is the Loneliest
Americans have never been healthier, or more alone. These things might be related.
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Steve Downs @stephenjdowns.bsky.social · 27/07/2026
great reflection of the challenges of alignment
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 24/07/2026
Our latest newsletter is out and we look at our societal failure to translate greater resources and know-how to better population health outcomes, reflecting on two new papers. mailchi.mp/13b090cfe1f9...
mailchi.mp
Building H: Translation Error
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Building H @buildingh.bsky.social · 23/07/2026
We're excited to launch the latest in our series of speculative design projects, partnering with @hcde.uw.edu. The Value of a Commute (www.buildingh.org/commute) looks at the frequent misalignment between people's values and their commuting choices -- and how to intervene in a harmful loop.
buildingh.org
The Value of a Commute — BUILDING H
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Robert Roy Britt @robertroybritt.bsky.social · 23/07/2026
The US is the undisputed leader of the "morbidity gap," the difference in years between how long people live and how long they are healthy. The data argue for greater focus on living well instead of worrying about living longer. medium.com/@robertroybr... #aging #longevity #health
medium.com
People Live Longer But Less Healthy as ‘Morbidity Gap’ Grows
Poor health isn’t confined just to “older people,” new research finds
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Steve Downs @stephenjdowns.bsky.social · 20/07/2026
pmc.ncbi.nlm.nih.gov/articles/PMC...
pmc.ncbi.nlm.nih.gov
Epidemiology of cardiovascular disease and diabetes in 2026: expanding prevalence, escalating costs, and the limits of contemporary prevention
The recently published 2026 American Heart Association Heart Disease and Stroke Statistics Update extends beyond routine surveillance to provide a systems-level diagnosis of contemporary cardiovascula...
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Steve Downs @stephenjdowns.bsky.social · 20/07/2026
FWIW I was just reading a paper on cardiovascular disease that made a similar point: “The 2026 update is therefore best interpreted not as a catalog of isolated diseases, but as evidence of a structural failure to translate cardiovascular knowledge into durable population health gains.”
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Steve Downs @stephenjdowns.bsky.social · 20/07/2026
It’s as if we’re chasing our tail. On the other hand, I’m not sure how to explain the shift in the 2010s
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Steve Downs @stephenjdowns.bsky.social · 20/07/2026
It’s the idea that as a society, we pour a ton of investment into products and services that lead to unhealthy behaviors — think ultraprocessed foods, automobile-centric community designs, 24/7 sedentary entertainment, etc. And then there’s our tendency to focus health interventions way downstream.
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Steve Downs @stephenjdowns.bsky.social · 20/07/2026
Is one possibility that some of the resources are diverted into producing conditions that worsen health? So in effect you have competing efforts — a product environment that discourages health and medical advancement that enables us to live longer in poor health?
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 06/07/2026
The most viewed story from our newsletter last week, was @dkthomp.bsky.social's piece on the all too solitary nature of pursuing one's health: www.derekthompson.org/p/the-cult-o...
derekthompson.org
Why the Healthiest Generation Is the Loneliest
Americans have never been healthier, or more alone. These things might be related.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 07/07/2026
Another popular story from our newsletter last week was this piece, from Gary Taubes in @theatlantic.com, on the controversies about ultraprocessed foods: www.theatlantic.com/health/2026/...
theatlantic.com
A Fancy Name for Junk Food
Does the war on “ultra-processed foods” make any sense?
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 02/07/2026
For our latest newsletter, we look into different visions of the future of homes — and, inspired by @dkthomp.bsky.social and LM Sacasas, explore what these visions might say about how we pursue health. Plus why we need more sunlight exposure and more ... mailchi.mp/c43b588d90f2...
mailchi.mp
Building H: Do You Want to Live in the Jetsons’ Home?
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 19/06/2026
Good overview of the @amjpublichealth.bsky.social work on ultraprocessed foods by @jessgrose.bsky.social: www.nytimes.com/2026/06/17/o...
nytimes.com
Opinion | The Deck Is Stacked Against Healthy Eating
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Steve Downs @stephenjdowns.bsky.social · 18/06/2026
Congratulations Nathan. Fantastic — and well-deserved — news.
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Building H @buildingh.bsky.social · 16/06/2026
One of the most popular stories in our newsletter last week was this report, from Rhitu Chatterjee of @npr.org, on a new study on remote work and mental health: www.npr.org/2026/06/08/n...
npr.org
People love working from home. But does it love them back? A new study says no
A study finds that people in remote jobs are more socially isolated, anxious and sad compared to people not in remote jobs. But demanding everyone return to the office isn't the answer either, say res...
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Building H @buildingh.bsky.social · 15/06/2026
For our newsletter last week, we delved into Pope Leo’ encyclical on AI, which manages to be both a reasonable and radical assessment of how societies shape technology in the modern world. www.buildingh.org/news/2026/6/...
buildingh.org
Newsletter | Pope Leo XIV Is a Big-Time Systems Thinker — BUILDING H
When an emerging technology is so significant that it promises (threatens?) to transform societies, the way we live and even what it means to be human, it is no surprise that religious leaders will fe...
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Building H @buildingh.bsky.social · 11/06/2026
Pope Leo XIV wrote a lengthy encyclical about AI and it’s a fascinating exposition on technology, society, market capitalism and well-being. For our latest newsletter, we dig into the Pope’s arguments — which are simultaneously reasonable and — in today’s world — radical. mailchi.mp/2c73983bda70...
mailchi.mp
Building H: Pope Leo XIV Is a Big-Time Systems Thinker
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Building H @buildingh.bsky.social · 27/05/2026
Another article we featured in last week's newsletter on GLP-1s was this piece by @arianaec.bsky.social on "Ozempic personality": www.washingtonpost.com/health/2026/...
washingtonpost.com
What is ‘Ozempic personality,’ and why does it make life feel ‘meh’?
Doctors and patients across social media are reporting a kind of emotional flattening while on GLP-1 drugs.
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Building H @buildingh.bsky.social · 25/05/2026
The most clicked story in our newsletter last week was this report on how a major study using data from Apple found a connection between hearing loss and walking speed: www.wsj.com/health/welln...
wsj.com
Walking Slower? Why Your Ears, Not Your Knees, Might Be the Problem
Apple’s hearing study used real-world data from more than 57,000 iPhone users to make an important health connection.
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Reposted by Steve Downs
Building H @buildingh.bsky.social · 21/05/2026
Are GLP-1s essentially an inoculation against modern life? That’s the question of our latest newsletter. Plus: social media at a crossroads, the strange tale of Blue Zones and more. mailchi.mp/4c33a7b38165...
mailchi.mp
Building H: An Inoculation Against Modern Life?
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Building H @buildingh.bsky.social · 19/05/2026
There's been controversy about how to define ultraprocessed foods. Maybe it doesn't need to be that complicated: healthyeatingresearch.org/research/ult...
healthyeatingresearch.org
Ultraprocessed Foods in the U.S.: Recommended Definitions and Policies | Healthy Eating Research
Building Evidence to Prevent Childhood Obesity | Ultraprocessed Foods in the U.S.: Recommended Definitions and Policies
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