This week on The Colosseum, we cover the biggest stories in health, fitness, wellness, and human performance.
20-year-old Auburn hurdler Ja'Kobe Tharp ran a 12.75 to break the 110-meter hurdles world record at the NCAA Championships — the first world record set at that meet in 50 years, and he says he had more in the tank. We dig into the Surgeon General's new advisory reframing kids' screen time as a public health issue (where it's right, and where it pulls its punches), plus a longevity arms race heating up: David Sinclair's Life Biosciences dosed its first patient in an FDA-approved cellular-reprogramming trial, right as Russia reportedly pours $26 billion into its own anti-aging research.
On the endurance side, two unreal stories. Dr. Sarah Ruggins — a Canadian ultra-cyclist who lost years of her life to a brutal nerve condition before picking up a bike just three years ago — is attempting the fastest-ever ride from the bottom of Europe to the top: 6,000km, nine countries, 22 hours a day in the saddle on 90 minutes of sleep. And French ultrarunner Aurélien Sanchez, the 2023 Barkley Marathons champion, is taking a high-risk crack at the Pacific Crest Trail speed record.
Whoop and Strava finally connecting, a kimchi bacterium that cleared most nanoplastics in lab testing, the FDA approving bemotrizinol (the first new sunscreen filter in the U.S. since the '90s), a study tying ultra-processed food to worse attention, a JAMA look at how few people actually share their wearable data with doctors, and New Orleans' "healthy default" drink rule for kids' meals. We also open with some real talk on why running might be the wrong first move for fat loss.
And our Study of the Week: a 2026 systematic review and meta-analysis on "exercise snacks" — breaking up long stretches of sitting with short, frequent walking breaks. The finding: a two-to-three-minute walk every 20-30 minutes after meals meaningfully lowers your post-meal glucose and insulin, with walking beating standing and frequency mattering most. The most underrated metabolic lever might just be a short walk.
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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.