As someone who is very particular about product quality, I give @function an A . Their customer experience is outstanding. 1) Scheduling a blood draw takes about 30 seconds 2) Results come back fast 3) The depth of insight you get into your health is on another level

1/ Get this moment right and you get Renaissance Florence. Get it wrong and you get the New Soviet Man —and the twenty million graves that came with him. AI is a Renaissance. Three of its four pillars are already here. The fourth is on us.🧵

One chart should change how many think about cancer. This is U.S. survival data from patients diagnosed between 2011 and 2017. Local = cancer is only in the organ where it started. Regional = cancer has reached nearby lymph nodes or tissues. Distant = cancer has spread to other organs. Look at what happens to 5-year survival: Breast cancer 99% (local) 86% (regional) 29% (distant) Colon cancer 91% 72% 14% Melanoma 99% 68% 30% Prostate cancer 99% 99% 31% Lung cancer 60% 33% 6% Pancreatic cancer 42% 14% 3% The numbers are not current. This data is now several years old. Since then, treatment has improved significantly for melanoma, lung cancer, kidney cancer, and some blood cancers thanks to immunotherapy and targeted therapies. Progress has been slower for pancreatic cancer, stomach cancer, and metastatic colorectal cancer. The percentages have changed. The pattern has not. For many cancers, the biggest difference is not the cancer itself. It’s whether it is found before or after it spreads. (Credit @emigal who shared this chart with me)

I’m rarely speechless.

It’s an honor to now build with @smart and the @joinsuppco team. Stay tuned.

We're thrilled to share that @function has officially acquired @joinsuppco. More than 60% of Americans take dietary supplements, yet for decades, the category has lacked an independent standard for trust, efficacy, and safety. The number one question we get at SuppCo is: "How do I know my supplements are actually working for me?" Today, we're officially one step closer to closing that loop. Function helps you monitor your health through a comprehensive baseline of 160 lab tests and imaging. SuppCo provides the independent trust layer to help you verify the quality and science behind the supplements you put into your body. Together with the Function team, we're going to build something that's never been built before: a clear line from your biology to your supplement stack, with direct insights into what’s working for you. We're incredibly excited to join Function and contribute to their mission of helping everyone live 100 healthy years. Read the full announcement here: prnewswire.com/news-releases…

Long live @RobinhoodApp

For those who are interested, Function Health offers a wealth of interesting health-related data (could make a good gift for the health-data-intrigued in your family or friend circles).

Health should be as easy - and personalized - as music. @ZSultan is joining @function as Chief Product & Technology Officer. Ziad comes to Function from his role as SVP of Personalization at @Spotify . At Spotify, Ziad led Product, Engineering, Design, Data, Tech Research, and Operations for an organization of 500 people. His teams built and scaled one of the world's most advanced personalization engines, powering beloved experiences such as Wrapped, AI DJ, Home, Search, Daily Mix, Discover Weekly, Blend, and Radio for hundreds of millions of listeners. Prior to his six years at Spotify, Ziad helped lead Google News. Ziad is 1 of 1. World-class in technology. World-class in personalization. And 100% mission aligned. Function makes health simple. Spotify makes music simple. Personalization is the shared core: music that feels made for you, and health that finally understands you. It’s incidental - but perfect timing - that Spotify Wrapped dropped yesterday. Wrapped compresses your year into something you instantly get. What’s the equivalent for your health? The ongoing digestion and understanding of who you are, how your body is changing, and what you can do about it. Under Ziad’s leadership, entirely new experiences will make your health as intuitive, personalized, and delightful as your favorite playlist. Function is building a product so good it would feel morally criminal not to use, and as commonplace as Spotify or Google News. Stay tuned for what we create, just for you. Welcome, Ziad. Long live humans. PS — Listening Age? How about Biological Age? We see (and love) you, Spotify. And we raise you one Ziad. prnewswire.com/news-releases…

This year the entire @AgreeHQ team was gifted an @function annual membership to celebrate an incredible year of building together!

As Thanksgiving approaches, and as companies that I work closely with grow large enough to start to hosting summits such as 11.11 (@elevenlabs) and Function Function (@function), been thinking a lot about this. There is a special time within fast growing companies that are recognized later as the “good old times”, but neglected or under appreciated by people living in it. May vary for others but having been part of startups as early as 15 people all the way up to 4,000 employees, my sweet spot is that 200 -> 500 person stage that happens over 1-2 years. Companies that grow headcount that quickly are typically doing so because product-market fit is clearly found, and the business is starting to rip. Because of the insatiable demand from the market and the massive potential if you win the market, companies have no choice but to add lots of employees. So things are going well. So (good) chaos reigns supreme internally. There’s so much to do - and everyone is running. Everyone’s executing. Everyone’s aligned with the company’s product & mission. Going from 20 -> 200 people already means that simply staying at and doing well at your job implies that one may have 10x of implied responsibilities or impact. Things may be moving too quickly to notice, but when you look back, these are definitely good times when you were stretched the most. The team size is small enough that most everyone knows each other. And founders who want to preserve the unique culture that got them there in the first place are wary of the exploding team size, so hiring bar is set very high and founders are often screening candidates directly before they join. Even if you are hired for specific role, company is growing so fast that you end up doing a few more things not strictly in your job description - out of love, out of alignment. This helps people who joined during this time forge a special bond. Camaraderie is strong. So if you are having all hands or off-sites during this stage, please take a moment, look around to see your colleagues. You are in the good old times. These are your people. You went through and will go through many peaks and troughs together. You’ll come out of it with implicit kinship and strong bonds. And years later, even if you are no longer at the company, these colleagues are the ones you rely on, build business and wealth with. I hope we all get to take a moment to pause and imagine our workplace, but 10x larger than today - and have happy expectations for those to come, but also deep deep appreciation for those around you right now. And be thankful for the good old days we are in today. “I wish there was a way to know you’re in the good old days before you’ve actually left them” - Andy Bernard from the Office -

.@function lands $300M, rolls out 'medical intelligence' AI model for health data bit.ly/4iqaJAO

Congratulations to @function on their $298M Series B at a $2.5B valuation! We couldn't be more thrilled to welcome @Redpoint and NFDG to the company.

🚨 Function Health Raises $298M Series B at $2.5B! Most of us have known someone who finds out about a serious illness only once it’s too late. I’ve felt that loss too. A former colleague and friend passed away a few years ago from undiagnosed stage 4 stomach cancer, even after doing everything she could to get answers. It shouldn’t have happened that way. It hit me hard for many reasons - but also because it felt like something that should’ve been detected sooner. I grew up in Korea, where annual checkups are just part of life: affordable, detailed, focused on staying healthy instead of waiting for something to go wrong. People want to understand their health, but the U.S. healthcare system doesn’t always make that easy. There is a massive opportunity to transfer healthcare and patient outcomes. Since their Series A, @a16z investment in @function is about the opportunity for AI to transfer healthcare and patient outcomes as it gets better at spotting patterns, tracking biomarkers and imaging but it's also deeply personal. Excited to welcome our friends at @Redpoint and NFDG and congrats to Jonathan and the team on the incredible progress so far - much more to come.

A new price. The same depth of data—now $365 a year. That’s $1/day for more hikes, more hugs, and to unlock more healthy years. functionhealth.com

So I’m not an investor or involved in any way with Function, but I had the exact same experience last week. Said they were getting 8-10 per day from Function. I thought it was a great experience and the results were very well reported.

I went to a new doctor this morning. When he asked me about my thyroid, I handed him my phone with recent @function lab results pulled up. Told the doctor everything without saying anything.

A Conversation with Nassim Taleb on Cancer and Heart Disease I recently sat down with my friend @nntaleb to talk cancer prevention and detection, heart disease, full body MRIs, and more. Enjoy!

We’re honored to be ranked #8 on @LinkedIn’s list of Top U.S. Startups of 2025. A reflection of what drives us every day: empowering people to live 100 healthy years.