Chelsea Polis
Reproductive health epidemiologist @guttmacher.org. Contraception, abortion, FemTech, HIV/STIs, infertility, global public health, & research integrity. Alum of WomenLift Health 2024. Maddox Prize awardee 2023. Anti-SLAPP law advocate. www.chelseapolis.com
- I'm in awe of @mirandayaver.bsky.social and can't wait to read her new book. The link in the post below didn't work for me - but this one should: www.cambridge.org/us/universit... I just submitted my pre-order (and encourage others to, as well)!
- Every once in a while, an original thinker changes the terms of the debate. @mirandayaver.bsky.social has done this in her upcoming book. It’ll be a must read for anyone concerned or curious about how our health care system works — or doesn’t work. Pre-order it here: a.co/d/0akGuQKm
- Reposted by Chelsea PolisI was just denied entry to the Dilley detention facility while my constituent, seven-year-old Diana, remains inside. What kind of sick, horrific conditions are children being forced to endure in there? I will be back tomorrow. Accountability can’t wait.
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- Not easy listening, but very important listening for anyone who cares about reproductive health, rights, & justice worldwide. Journalists: don't miss this. Thanks to @jennieindc.bsky.social for interviewing @beirners.bsky.social & Caitlin Horrigan of @ppfa.org for this important, sobering episode.
- Reposted by Chelsea Polis“Every time we choose the good action or response, the decent, the valuable, it builds, incrementally, to renewal, resurrection, the place of newness, freedom, justice.” - Anne Lamott
- Reposted by Chelsea PolisThis week, the Trump administration finalized a new sweeping rule that broadens the Mexico City Policy. @spsaki.bsky.social explains how the policy represents the most expansive—and potentially disruptive—version of ideological restrictions on foreign aid to date.
- Today, @govpritzker.illinois.gov launched the Prairie State Access Fund, to strengthen infrastructure and resources for Illinois’ reproductive healthcare ecosystem. More info here: gov-pritzker-newsroom.prezly.com/gov-pritzker... 👏 👏 👏
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- Reposted by Chelsea PolisAlex Pretti "used to tell people off when they made sexist comments to female physicians. He bought me coffee when I had a really bad day as an intern...I laughed alongside him daily. He made a point to teach medical residents without judgement, but with a smile on his face and a joke."
- Reposted by Chelsea PolisThe story is not that there are two conflicting versions of what happened. The story is that the federal government is lying about what happened. There is plenty of evidence. Your job, our job, is to sift that evidence and describe what actually happened ffs.
- Reposted by Chelsea PolisA reminder to the news media: “conflicting accounts” is what you say BEFORE the incontrovertible video evidence appears. After that, your job is to ask why one side is lying, not to repeat the lie and pretend no one knows the truth.
- Reposted by Chelsea PolisWe lost a giant in public health today. Dr. William H. Foege helped eradicate #smallpox - the only human disease ever eliminated—through science, surveillance, and vaccines. His legacy is the antidote to today’s antiscience, anti-vaccine rhetoric. www.nytimes.com/2026/01/24/u...
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- Strongly encourage folks interested in the below to read this: www.bmj.com/content/384/...
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- Reposted by Chelsea PolisBREAKING: The controversial hepatitis B vaccine trial in Guinea-Bissau has been *cancelled,* I can now report. A senior official with Africa CDC confirmed the cancellation and said GB officials are working to make sure any research is conducted ethically: www.theguardian.com/us-news/2026...
- Reposted by Chelsea PolisNew paper – and my first ✨Registered Report✨: Do hormonal contraceptives affect women’s sexuality? We studied both average effects and individual differences in effects using longitudinal data: doi.org/10.1177/2700...
- 🧵 In Health Affairs Forefront, I wrote about why fertility tracking must be grounded in evidence and reproductive justice - not co-opted by agendas that strip away other reproductive health care. www.healthaffairs.org/content/fore... Sharing a few key points in thread below 🤓
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- Reposted by Chelsea PolisMAGA uses MAHA as a shield for priorities that have little to do with health and much to do with limiting women’s opportunities and roles in society to marriage and motherhood.
- MAHA is weaponizing fertility awareness based methods to undermine access to the full spectrum of reproductive health care (e.g., other forms of contraception, abortion, IVF, Title X). Here, I argue that FABMs must be grounded in evidence & reproductive justice: www.healthaffairs.org/content/fore...
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- MAHA is weaponizing fertility awareness based methods to undermine access to the full spectrum of reproductive health care (e.g., other forms of contraception, abortion, IVF, Title X). Here, I argue that FABMs must be grounded in evidence & reproductive justice: www.healthaffairs.org/content/fore...
- Reposted by Chelsea PolisIt will take some time (a few years), but this change will lead to hundreds of thousands of preventable diseases in the most vulnerable parts of the population, including deaths. I assume we'll follow this up with the introduction of universal healthcare and paid family/sick/parental leave?
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- Thank you, @francoisegirard.bsky.social, for having Dr. Rebecca Simmons and I on the FMUS podcast to talk about fertility awareness based methods of contraception. m.youtube.com/watch?v=cTqw...
- Reposted by Chelsea PolisExpectant mothers were left so hungry after the U.S. cut foreign food aid that one woman ate clay and charcoal. Her baby struggled to gain weight after being born prematurely. By @annamaria.bsky.social, photos by @storitellah.com & illustrations by Phoebe Ouma
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- Reposted by Chelsea PolisIDSA has selected Jeanne Marrazzo, MD, MPH, FIDSA, as its next chief executive officer, effective Jan. 12, 2026. Learn more: bit.ly/4pHt2nF
- Reposted by Chelsea PolisThe Vanity Fair photographer with a lot more courage than many titans industry and brokers of power
- The Vanity Fair photographer from the Susie Wiles story. Holy. Shit. www.washingtonpost.com/style/power/...
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- Reposted by Chelsea PolisJust a reminder that at least 600 Americans were fired for failing to show sufficient respect after Charlie Kirk's murder.
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- Reposted by Chelsea PolisAll I can say this morning is look for the helpers, like Ahmed. “Seven News reported the bystander was a 43-year-old fruit shop owner from the Sutherland Shire named Ahmed.”
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- Reposted by Chelsea PolisThe Sandy Hook shooting was 13 years ago today. Yesterday, there was a shooting at Brown University. There have been at least 75 school shootings this year. The US has a gun problem, and it seems we're never going to do anything about it. www.cnn.com/us/school-sh...
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- We cancelled our long-awaited winter vacation in Florida this year because of this bloodthirsty buffoonery - and wrote to the hotel to tell them exactly why - and you should too.
- This was *so* good. Brava, @karenguzzo.bsky.social and thank you for your work!
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- Reposted by Chelsea PolisMy teen, who had dreamt of being an astrophysicist, just told me he wants to go to law school because, “Science isn’t going to be a priority in the US in the future…I don’t want a job where I’ll be constantly worried my funding will be taken away.” Gutting. How many future scientists have we lost?
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- Reposted by Chelsea Polis“When participants used ChatGPT to draft essays, brain scans revealed a 47% drop in neural connectivity across regions associated with memory, language, & critical reasoning. Their brains worked less, but they felt just as engaged—a kind of metacognitive mirage.”🧪
- I finally got around to reading this. You should read it too. "We are exporting the very labor of teaching and learning—the slow work of wrestling with ideas, the enduring of discomfort, doubt and confusion, the struggle of finding one’s own voice." www.currentaffairs.org/news/ai-is-d...
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- Reposted by Chelsea PolisScientists: have you been the target of an online harassment campaign, doxxing, or weaponized FOIA requests? I'd like to talk to you about steps you had to take to protect your digital security for an upcoming Nature story. (You can be anonymous if necessary.) RTs appreciated.
- Our paper "Contraceptive effectiveness: A synthesis of the literature" is freely available thru 1/9/26 lnkd.in/e5j-4pXw In choosing contraception, method effectiveness is often a primary consideration though rarely the only one. Ppl deserve accurate info (incl on effectiveness) for informed choice.
- Reposted by Chelsea PolisI’m not going to pretend it’s easy to say something in the moment when you witness the president do this and you’re aboard Air Force One with all the uniformed officers and secret service and fancy wood accents, but this is really an instance where you should. people.com/donald-trump...
- Reposted by Chelsea PolisNEW: When Andrew Tate landed in the US, Customs & Border Protection seized his electronic devices. But @propublica.org found that a White House official told DHS to return the devices, emphasizing that the request came from the White House. By @robert-faturechi.bsky.social & Avi Asher-Schapiro
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- Reposted by Chelsea PolisThe lesson here is have good principles and stand on them. Stand for something that isn't power!
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