Something landed on my screen last Tuesday that stopped me mid-coffee. Researchers analyzing Fitbit data from people taking GLP-1 medications found that after starting the drugs, daily step counts dropped. Exercise levels went down, not up. The assumption everyone in this industry has been making is that losing weight makes you want to move more….

Something I read in early January stopped me mid-scroll, and I don’t say that lightly. Researchers at Newcastle University published findings in the International Journal of Cancer showing that a single 10-minute bout of intense exercise changes the molecular composition of human blood in ways that appear to directly influence colon cancer cells. Not after…

A question came up on our LIFTS podcast while I was sitting across from George Crook of HYROX Training Zones. We were deep into a conversation about the rise of competitive fitness, and at some point someone asked what actually separates a genuine movement from a well-marketed spike of interest. It sounds like a simple…

Something about this finding stopped me mid-scroll when it came across my reading list last week. Not because it was entirely unexpected. More because it finally put hard numbers on something I’d been quietly observing in conversations with clinicians, trainers, and people navigating weight loss in real time. A study presented at ENDO 2026, the…

The number one fitness trend in the world for 2026 is the same thing it was last year, and the year before that. Wearable technology has topped the American College of Sports Medicine’s Worldwide Fitness Trends survey for several years running now, and on paper that sounds like a non-story. The real surprise sits further…

The first time I came across interval walking training in a research context, I assumed it was recent. It had the feel of something new: a structured protocol, specific timing, real numbers attached to it. But the original work comes out of Shinshu University in Nagano, Japan, and some of those studies go back to…

The number on the scale is going down. The clothes are fitting better. The photos look different. And yet something is off, something that doesn’t show up in any of those measurements but shows up everywhere else: in the stairs that now feel harder, in the grip strength that has quietly declined, in the way…

For most of my career, the answer to “can cartilage come back?” was a polite but firm no. Articular cartilage, the smooth tissue cushioning your joints, lacks a blood supply, and that biological detail was treated as a verdict. No blood supply meant no circulation of repair cells. No repair cells meant no regeneration. End…

The study that crossed my desk earlier this month stopped me mid-scroll. Not because it confirmed what I’ve spent 28 years believing, but because it quantified it at a scale I hadn’t seen before. Thirty years of data. Nearly 150,000 adults. Three long-running cohort studies coordinated through Harvard T.H. Chan School of Public Health. Researchers…

The most common piece of wrong advice I’ve heard repeated in gyms, fitness consultations, and professional discussions for nearly three decades goes something like this: enjoy your fitness while you’re young, because once you hit 35 everything changes. It sounds like wisdom. It has the structure of something a serious person would say. And it…