Jonathan Swerdlin
@swerdlin
My life's work is to keep people healthy. Co-founder @function
I’m gifting 10 @function MRI scans. Comment “long live @_____” and tag one person you want to live 100 healthy years. The @function team will randomly select the gift recipients—both those who comment + the person mentioned—after 6 PM on July 25th. A rush of people have…
This @function member’s story is inspiring, and we hear experiences like this daily. It’s a peak into what we are building, and why.
this story is going wildy viral on reddit. ChatGPT flagged a hidden gene defect that doctors missed for a decade. ChatGPT ingested the patient’s MRI, CT, broad lab panels and years of unexplained symptoms. It noticed that normal serum B12 clashed with nerve pain and fatigue,…
The signs were easy to dismiss—tight rings, snug shoes, a rising HbA1c. But Catherine, a 59-year-old mom, wanted clarity. So she joined Function and added the IGF-1(insulin-like growth factor) test to her Function membership out of curiosity.
So incredibly thrilled that @function has been named one of @TIME’s Top 100 Most Influential Companies of 2025. We’re just getting started!
Biden hadn’t had prostate screening since 2014. He would’ve gotten better medical care from @function than he did as President. 🤯
The worst sources of forever chemicals—and the sneaky places they’re hiding:
BPA and forever chemicals like PFAS are everywhere—even in your kitchen. Nonstick pans. Food containers. Even in food itself. The question isn’t whether you’re exposed. It’s how much—and what you can do to protect yourself. Here are the worst offenders and hidden…
I’m gifting 10 @function memberships. Comment “2025” below to get one. 10 people will be randomly selected at 11pm ET on Jan 5th. No strings attached. This one is on me. It’s personal. Across 100,000+ Function members, I’ve witnessed lives saved, worries eased, risks flagged,…
+100
Democratizing Health Through Tech 1/ The last several years have seen the democratization of health through innovative tech options, from AI that analyzes blood biomarkers, to wearables that track biometrics, to accessible full-body screening.
The U.S. has a cancer problem: More than 70% of cancer deaths come from cancers with no recommended screening tests. These cancers are often detected late, which can complicate prognosis. We need a proactive approach. Here’s why:
This is Cari's story: a 51-year-old mom of 4 from Jacksonville, FL. A former Joffrey Ballet soloist and e-commerce entrepreneur, Cari was fit and health-focused. In November 2023, her daughter urged her to join @function. By December, Cari had completed 100+ lab tests,…
Thrilled to lead @function's Series A, supporting their mission to help everyone live 100 healthy years. By combining comprehensive testing, AI, & personalized insights, they're pioneering a preventative, lifelong approach to health. Why we invested 👇a16z.com/announcement/i…
Time to build!
1/ Aiming for 100 healthy years, @Function Health's platform collects over 100 biomarkers from lab tests, surpassing typical annual physicals, then combines the data from labs, EHRs, and wearables to deliver clear, personalized health insights. This approach shifts the focus…
It resonates because it’s real. This is a real story. Based on a real Function employee’s experience. It’s in our bones—the truth that we often need each other to be on top of our health. We feel it with our family, with our friends, with our loved ones. That we are one push…
The landscape of precision training is changing. @Equinox has partnered with @function_health to create a new standard of human health and performance. Together, we integrate cutting-edge science with the art of coaching, offering Equinox members over 100+ whole-body lab tests…
Unable to lose weight despite your best efforts? It’s probably not an Ozempic deficiency. The clue may be the hormone leptin, the body’s natural appetite suppressant. It’s the “satiety hormone” that tells you when you’re full. Anything causing inflammation can elevate leptin…
Sick and tired of being sick and tired? Maybe it’s your ferritin. Low levels indicate iron deficiency, which can cause fatigue, brain fog, hair loss, and insomnia. You may feel like you’re dragging a boulder all day. High levels may be a sign of inflammation or…
Heart disease is the #1 cause of death. Today, physicals mainly use a standard cholesterol test to determine your heart's risk. One problem: 75% of people hospitalized for heart attacks didn't have high LDL cholesterol levels. Top cardiologists, & doctors like @drmarkhyman,…
2023 > 2022 Health = Wealth Life Choices = Health Choices Universe > Metaverse Social Life > Social Media Nature = Art Less > More