
Your medical data is being sold without your consent. "Our Bodies, Our Data" exposes the $67 billion industry trading patient records. Duke University's Dr. Washington calls it "vital" reading, revealing how pharmacies, insurers, and data brokers profit from your most intimate health secrets.
Adam Tanner, author of Our Bodies, Our Data: How Companies Make Billions Selling Our Medical Records, is a leading authority on data privacy and the commercialization of personal information.
A fellow at Harvard University’s Institute for Quantitative Social Science and former Reuters correspondent with postings in the Balkans, San Francisco, and Moscow, Tanner combines investigative rigor with a deep understanding of global data ecosystems.
His work, including the Washington Post-notable What Stays in Vegas: The World of Personal Data—Lifeblood of Big Business—and the End of Privacy as We Know It, exposes how industries profit from sensitive information while reshaping privacy debates. A frequent commentator on CNN, NPR, and BBC platforms, Tanner’s insights draw from decades of frontline reporting and academic research.
He was part of the Reuters team named a 2012 Pulitzer finalist for coverage of the Libyan revolution, underscoring his commitment to uncovering systemic truths. Our Bodies, Our Data continues his mission to illuminate the hidden trade-offs between innovation, profit, and individual rights in the digital age.
Our Bodies, Our Data exposes the multi-billion-dollar trade in anonymized medical records, prescriptions, and insurance claims sold by data brokers to pharmaceutical companies, insurers, and marketers. Adam Tanner investigates how this hidden industry prioritizes profit over patient privacy, highlighting risks of re-identification and the lack of comprehensive health records for actual care.
This book is essential for healthcare professionals, policymakers, privacy advocates, and anyone concerned about data ethics. It offers critical insights for patients seeking to understand how their medical information is commercialized without consent.
Yes—Tanner’s investigative rigor and clear storytelling make it a landmark work on medical privacy. It sheds light on systemic exploitation in healthcare data markets, offering a compelling case for regulatory reform.
Hospitals, pharmacies, and insurers sell anonymized records to data brokers like IMS Health (now IQVIA), which aggregate billions of patient profiles. These dossiers—stripped of names but retaining identifiers like birth year and doctor details—are monetized for drug marketing and research.
Advanced algorithms can cross-reference anonymized data with public records to reveal identities, exposing patients to discrimination, insurance denial, or employment issues. Tanner warns that purported “anonymization” often fails to protect privacy.
Tanner argues that while corporations profit from patient data, individuals struggle to access unified health records. This paradox undermines care quality while enabling unchecked commercial exploitation.
The book advocates for patient ownership of health data, transparency in data sales, and stricter regulations akin to European GDPR. Tanner emphasizes empowering individuals to control how their information is shared.
While What Stays in Vegas explores broader data commercialization, Our Bodies, Our Data focuses specifically on healthcare. Both reveal systemic privacy failures, but the latter highlights life-and-death implications of medical data misuse.
Some critics note the technical complexity of data anonymization topics, which may challenge casual readers. However, the book is widely praised for its rigor and urgency in addressing underreported privacy violations.
With AI accelerating data analysis, re-identification risks have grown since the book’s publication. Its warnings remain critical as healthcare AI and personalized medicine expand reliance on patient data.
Tanner details how brokers like IQVIA and Symphony Health operate as middlemen, compiling dossiers on 500+ million patients globally. These firms prioritize pharmaceutical marketing over scientific research, per internal industry documents.
The book critiques the tension between data’s potential for medical advancement and its misuse for profit. Tanner calls for ethical guidelines to ensure patient consent and equitable benefits from data use.
Feel the book through the author's voice
Turn knowledge into engaging, example-rich insights
Capture key ideas in a flash for fast learning
Enjoy the book in a fun and engaging way
We do not share this kind of information externally.
Pretty much everyone...has some sort of supply arrangement.
Patients came to my pharmacy.
HIPAA's scope is also limited to 'covered entities'.
IMS has historically shunned public attention.
Break down key ideas from Our Bodies, Our Data into bite-sized takeaways to understand how innovative teams create, collaborate, and grow.
Distill Our Bodies, Our Data into rapid-fire memory cues that highlight key principles of candor, teamwork, and creative resilience.

Experience Our Bodies, Our Data through vivid storytelling that turns innovation lessons into moments you'll remember and apply.
Ask anything, pick the voice, and co-create insights that truly resonate with you.

From Columbia University alumni built in San Francisco
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
From Columbia University alumni built in San Francisco

Get the Our Bodies, Our Data summary as a free PDF or EPUB. Print it or read offline anytime.
Imagine visiting your doctor, sharing intimate details about your health, and walking out with a prescription. What you likely don't realize is that within seconds, your medical information begins a journey through a multi-billion dollar marketplace. While your name is removed, everything else-your conditions, medications, test results, and demographics-is packaged and sold repeatedly to companies you've never heard of. This hidden trade processes millions of health records daily, with firms like IMS Health (now IQVIA) maintaining dossiers on over 500 million patients worldwide. Pharmaceutical giants consider this data so valuable they pay tens of millions annually to access it. Meanwhile, you probably can't even access your complete medical records during an emergency. This paradox sits at the heart of our modern healthcare system-a world where your most intimate details have become valuable commodities traded without your knowledge or consent.