This week on The Colosseum, we cover the biggest stories in health, fitness, wellness, and human performance.
Six weeks in, and the wearable arms race is the story. We break down Oura's Ring 5 — 40% smaller, with AI health guidance, GLP-1 tracking, and a new health radar watching nighttime blood pressure and breathing trends — landing alongside a confidential IPO filing at a roughly $11 billion valuation off 5.5 million rings sold. Then we get to where the real innovation is headed: a UC Irvine sweat sensor that reads lactate, glucose, urea, and cortisol straight off your skin — battery-free, powered by your phone's NFC, self-cleaning, and continuously wearable. For athletes, a live lactate read could reinvent how you train your zones. Plus Strava's full strength overhaul — 14 partner integrations, auto-generated muscle maps, and a real lifting log for its 195 million users — and where Whoop, Google's Fitbit Air, Garmin, and Apple's incoming on-device AI all land in the fight.
On the science side, Andy Galpin breaks down a 2025 paper on why some people gain muscle faster than others — and why "I'm a non-responder" is almost always a measurement, dosing, or consistency problem, not your DNA. We also run through Brian Johnson's five pillars of longevity: strength, Zone 2, high-intensity cardio, mobility, and the one everybody skips — balance.
And over at the Enhanced Games, a peptide-era/PED swimmer dips seven hundredths of a second under the official 50-meter freestyle world record — unsanctioned by the sport, but worth a seven-figure prize.
Quick hits include Hunter "The Bulk Pony" McIntyre hitting a new record in his home HYROX sim, Hercules becoming the fastest person ever to run across Greece, Diplo calling wellness the new nightlife as run clubs replace nightclubs, a longevity daily-five movement routine worth stealing, Dr. Rhonda Patrick on whether you can mix creatine and caffeine, the David Protein vs. RX Bar debate, and the America 250 merch wave. We also recap our own Memorial Day Murph and the 12-week block we just started — VO2 max, lactate-threshold testing, and strength.
And our Study of the Week: a 2026 umbrella review and meta-analysis on resistance training in kids and adolescents with overweight or obesity. The takeaway — short, structured 8-to-12-week strength blocks reliably cut body fat, add lean mass, and build strength across every age group, while longer programs tend to stall on motivation, not physiology. Heavier kids actually tolerate lifting better than punishing cardio, and the early wins build the confidence that makes it stick. Which is the whole thesis of the show: better health creates better humans, and better humans build a better society.
What is The Colosseum | Health & Performance?
The Colosseum is a weekly show built on a simple idea: modern science has answered a lot of questions about how to train, eat, recover, and live well — and most people are still left guessing.
Each episode, hosts Tyler and Jayden break down the latest news across health, wellness, and fitness. Exercise science. Endurance sports. Health tech. Performance nutrition. Recovery and longevity. It's the kind of honest, curious conversation you'd have with a friend who reads the research so you don't have to.
Expect deep dives on science, research, and training for IRONMAN, HYROX, and ultra-endurance events. Conversations with or about athletes, coaches, founders, and researchers pushing the field forward. And honest conversations about the wellness trends shaping how people train, eat, and recover.
New episodes weekly. Part of The Colosseum — a modern health movement.