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Run for your life! At a comfortable pace, and not too far: James O'Keefe at TEDxUMKC

TEDx Talks · talk · Watch on YouTube

Fitness, sleep & longevityMedicine & infectious disease

What it is

Cardiologist James O'Keefe argues in a TEDx talk that moderate running confers the best longevity benefits, while extreme endurance training can damage the heart. He draws on data and his own experience as a lifelong runner.

Why Hacker News recommends it

HN cites it whenever people question whether more exercise is always better, especially extreme endurance running.

  • 3 people recommended it
  • 5 different months
  • 1 strong recommendations
  • first 2016, last 2026

What HN commenters said

  1. “I think about this TED Talk from 2012 a lot..”

    Data-driven talk that changed the commenter's fitness goals.

    browningstreet, 2025-09 · Strong recommendation · in “Why are so many young, fit, non-smoking women getting lung cancer?”

  2. “Here's an interesting video if you are an extreme athlete”

    Cardiac researcher explains how extreme exercise can damage the heart.

    andrewstuart, 2018-09 · Recommendation · in “Extreme Athleticism Is the New Midlife Crisis”

  3. “I think watching this Ted might be helpful”

    Explains how intense daily running can scar heart tissue.

    twawaaay, 2022-11 · Recommendation · in “Aerobic exercise can reduce the risk of metastatic cancer in mice: study”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: running, cardiology, endurance, longevity, tedx

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