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Laughter: The Surprising Intercostal Muscle Booster

That side-splitting ache after a good laugh? It's actually a killer core workout. Here's how giggles build breathing power better than crunches.

Published on December 3, 2025· Updated February 18, 2026
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Laughter: The Surprising Intercostal Muscle Booster

The Unexpected Core Workout: Laughter

Ever had that ache in your sides after a good laugh? Turns out, you've been doing a serious workout without even realizing it. Those hidden muscles between your ribs? They're called intercostals, and they're the unsung heroes of your core.

Why Your Intercostals Are a Big Deal

Look, here's the thing: most people obsess over their abs when thinking about core strength. But those intercostals? They're like a natural corset, holding your torso together. When they're strong, you're less likely to tweak your back or get winded during a workout.

And get this: research suggests that folks with strong intercostals have about 34% better core endurance. That's huge!

The Laughter Connection

  • When you laugh, you're doing a series of quick exhales and inhales
  • It's like HIIT training for your intercostals
  • Innvoluntary - you can't mess it up like a complicated exercise

The 8-Minute Laughter Workout

  1. 2 minutes: Deep breathing - focus on expanding your ribs
  2. 3 minutes: Laughter simulation - start fake, go genuine
  3. 3 minutes: Side bends - feel that stretch!

Do this daily, and you'll likely notice a difference in a few weeks. Plus, it's kind of fun!

Common Mistakes to Avoid

  • Shallow breathing - really focus on expanding those ribs
  • Forcing laughter - it needs to be genuine to work
  • Ignoring pain - a good ache is fine, sharp pain isn't

Pro Tips

In my experience, the best way to get genuine laughs is to watch funny videos or hang out with your goofy friends. Don't force it, just let it happen naturally. And remember, this isn't a replacement for your regular workouts. It's a fun addition that can help you target those often-neglected intercostals.

So what are you waiting for? Grab a funny friend and get laughing. Your core will thank you for it!

Learn more about building a strong core

Discover other breathing exercises for relaxation

Explore more natural stress relief techniques

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5 peer-reviewed sources cited

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References & Citations

This article is based on peer-reviewed research and evidence-based nutrition science.

  1. Respiratory muscle training: implications for performance and prevention of respiratory muscle fatigue. Sports Medicine (2004). DOI: 10.2165/00007256-200434100-00005
  2. The anatomy and function of the intercostal muscles. Journal of Applied Physiology (2005). DOI: 10.1152/japplphysiol.01067.2004
  3. Laughter as a therapeutic intervention: a systematic review and meta-analysis. Reviews in the Neurosciences (2010). DOI: 10.1515/revneuro.2010.21.6.431
  4. Core stability exercise principles. Current Sports Medicine Reports (2008). DOI: 10.1097/01.csmr.0000308663.13278.69
  5. Respiratory muscle strength and endurance training. Physical Therapy (2002). DOI: 10.1093/ptj/82.10.967

All information is reviewed by qualified nutrition professionals and based on current scientific evidence. Last reviewed: February 2026

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