Increase Volume First, Add Intensity Later—Never Both Simultaneously
Most athletes ruin their season the same way: They increase volume AND intensity at the same time. Rule #1 of season planning: Pick one. Volume first. Intensity later. And “later” is usually much later than your ego thinks.
Race‑pace Simulation Reveals True Distance Readiness
How to know you're "ready" for a specific distance: Complete a ~2/3 (Metric) simulation at race-pace as a regular training session with... - Minimal decoupling between pace/HR - No extended recovery needs beyond that of a regular loading day. For a marathon, I think...
Early Season Surge: Pace Yourself Like an Ironman
March is when athletes start blowing up their seasons. The sun comes out. 🌞 Motivation spikes. 🚀 Volume jumps up. 📈 But the season is a lot like an Ironman bike: These are just the opening miles. Be strong when it matters. Pace yourself.
Marathons Unhealthy Only When Poorly Prepared or Mis‑paced
Two things that make marathons unhealthy IMO: 1. Inadequate preparation. 2. Inappropriate pacing (for your fitness). Both are very common, but that doesn't make running a marathon inherently unhealthy.

Training Load Predicts VO2max, Aerobic Gains Ahead
A little #ProjectUnreasonable predictive modeling this morning - Training Load + Time In Zone vs predicted VO2max. Still a whole lot of pretty aerobic colors ahead for @JohnGoldman https://t.co/noj8ztob5u
Heart‑rate Recovery Outperforms VO₂max for Metabolic Health
Everyone obsesses over VO₂max. But this paper found heart rate recovery to be more strongly tied with metabolic health metabolites than VO₂max. Peak capacity is nice. But how well you recover after a hard effort may tell us more about your metabolic health.
Double Your Weekly Training to 12 Hours Total
This is very good advice. Especially the "you're prepared to train 6-8 hrs/wk" part. Personally, I would double it... 6hrs run + 6hrs cross-train But I am aware I have particular biases 😊
Recovery, Not Stress, Drives Fitness Gains
This is common sense. You don't get healthier/fitter from the exercise stressor. You get healthier/fitter from the supercompensation effect of the body during *recovery*. No recovery. No fitness. You need both.
Balancing Muscle Reserves and VO2max in Aging
In my view, the competing forces when it comes to health/longevity... 1/ Having sufficient reserves (both energy and muscle) so that you're not frail. 2/ Having very strong aerobic/metabolic fitness. These start to go against each other as you age. For example, for an...
15% Body Fat: Optimal, Not Normal, Achieve via Deficit
On 15% BF... A lot of talk on whether 15% BF (for men) is "normal" at the moment. Statistically... No, not normal. Yes, optimal. The 10-step process to getting there... Step 1/ A 250-500 kcal deficit each day. Steps 2 - 10/ See step 1. Things...

Make Your Workouts Feel Like Cozy Slippers
Remember these? Your training routine should feel like a cozy pair of slippers. If it feels like this instead, you're heading for trouble. https://t.co/EBtKidZqog
Hunter‑gatherers Produced Four‑to‑five Times More Poop
Did you know... That the daily 💩 weight of an average hunter-gatherer was ~4-5x the daily 💩 weight of a modern human? #FixYourFiber