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313. Marathons v. Ultras, Fatigue Resistance Debates, Gene Editing Breakthrough, and Posture Impact on Blood Volume!

Running

313. Marathons v. Ultras, Fatigue Resistance Debates, Gene Editing Breakthrough, and Posture Impact on Blood Volume!

Some Work, All Play›
Jun 2, 20261:33:31

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Episode Notes

We put some cinder blocks under the head of our bed (for science!) before this great episode. A weird study just came out finding that head-up sleeping may increase red blood cell totals. We talk about what it means and what it doesn’t mean. Excuse us while we launch a cinderblock start-up.

We also discussed a breakthrough in gene editing for cholesterol, and what that could mean for the future. The world is going to be so different in 50 years! Maybe by then, David can use CRISPR to be able to pronounce science words. 

And this one was full of fun topics! Other topics: our training log discussions, iron levels in athletes, breaking news on heat training from Unbound 200, a science debate on fatigue resistance terminology, and a study on glucose v. fructose.

Plus, we answer questions on heat training in the car, clean sport for age group athletes, marathon v. ultra training, and health uncertainty.

You’re going to learn a lot about what Megan would do for 40 grams of carbs. Totally normal stuff if you ask her!

We love you all! HUZZAH!

-David and Megan

Click "Get 40% Off" button for 40% off at The Feed here: thefeed.com/swap

Buy Janji's amazing gear: https://janji.com (code "SWAP")

20% flash deal for the Wahoo Kickr Run treadmill on Wednesday: https://www.wahoofitness.com/devices/running/treadmills/kickr-run-buy (code “SWAP”)

For training plans, weekly bonus podcasts, heart rate zones, articles, and videos: patreon.com/swap

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How do I listen to this episode of Some Work, All Play?

"313. Marathons v. Ultras, Fatigue Resistance Debates, Gene Editing Breakthrough, and Posture Impact on Blood Volume!" is an episode of Some Work, All Play. Runtime 1 hr 33 min. Published June 2, 2026. Hit play above to stream it here, or open the free Spot Sports app for background play and offline downloads.

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Quick FAQ

When was this episode published?
June 2, 2026.
How long is this episode?
1 hr 33 min.
What podcast is this from?
Some Work, All Play. Browse the full back catalog on the show page.
What does this episode cover?
Some Work, All Play covers running. This episode runs on the show's regular cadence.

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  • 313. Marathons v. Ultras, Fatigue Resistance Debates, Gene Editing Breakthrough, and Posture Impact on Blood Volume!
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