The Lifelong Runner book by Susie Klein — science stories and strategies for a lifetime of joyful miles

coming spring 2027

COMING SPRING 2027

The Lifelong Runner

The Lifelong Runner

The science, stories, and strategies to build a lifetime of joyful miles.

The science, stories, and strategies to build a lifetime of joyful miles.

get early access
get early access

“Running isn’t just exercise, it’s a practice. One you carry with you for life.”

from the lifelong runner

Susie Klein certified running coach and author of The Lifelong Runner

about susie

Running coach.
Author. Lifelong runner.

Susie Klein is a certified health and running coach helping people build a sustainable, joyful relationship with running, one that lasts a lifetime.

meet susie
meet susie

From the Blog

Tips, insights, and more

Tips, insights, and more

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ALL POSTS →

Blog
Why Running? 7 Reasons Millions Choose Running Over Other Exercise
Why Running? 7 Reasons Millions Choose Running Over Other Exercise

People ask me all the time why running specifically. My answer is always the same, nothing else gives you this much for this little. Here are the seven reasons I keep coming back to.

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Why Good Sleep is a Runner’s Secret Weapon (+ Coach Tips for Better Rest)
Why Good Sleep is a Runner’s Secret Weapon (+ Coach Tips for Better Rest)

Training hard is only half the equation. I've seen more runners improve by fixing their sleep than by adding more miles, here's what the science says and what I tell my clients.

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Discovering Your Running Foot Strike: A Game Changer for Injury Prevention
Discovering Your Running Foot Strike: A Game Changer for Injury Prevention

I didn't know my foot strike was working against me until I looked into it. Understanding yours could be the single biggest thing you do for injury prevention this year.

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The Lifelong Runner · Coming Spring 2027

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Happy Global Running Day! 🌎🏃🏻‍♀️ I encourage you to get out today and go for a run! Whether it’s one mile or ten, on the road or trail, whether you run solo or with a group, in New York or Sydney. It’s all about getting out there
Keep your feet blister free on your next run! Here are three quick tips to protect your feet: Size Up: Running causes your feet to swell. Leaving extra room prevents toe-banging and friction. Foot Balm: Swipe an anti-chafing balm over high-fricti
The heaviest storms always make room for the clearest skies. Just like a heavy downpour, the fog and confusion are only temporary. Keep moving forward, because the sun always breaks through for those who refuse to stop walking. #wednesdaywellness #
Having an anxiety moment? Try the 4-7-8 Breathing Technique. Inhale slowly through your nose for 4 seconds. Hold your breath for 7 seconds. Exhale completely through your mouth with a “whoosh” sound for 8 seconds.Repeat this cycle 4 time
What will you choose to make your soul happy today? A brisk walk? Cuddles with your furry friend? A hug with your partner? A warm cup of coffee? Do that! #wellnesswednesday #soul #chooseyourself #wellness
Do you know your running shoes’ heel-toe-drop? The “drop” is the height difference between your heel and your toe and it completely changes how your muscles and joints absorb impact. Bring your worn running shoes to your local ru