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BITESIZE | What Hunter-Gatherers Can Teach Us About Movement, Exercise and Ageing Well | Professor Daniel Lieberman #624

Feb 13, 2026 23m 36s 18 insights
Why do we find it so hard to exercise despite knowing how good it is for us? Feel Better Live More Bitesize is my weekly podcast for your mind, body, and heart. Each week I’ll be featuring inspirational stories and practical tips from some of my former guests. Today’s clip is from episode 514 of the podcast with Professor of Biological Science and Professor in the Department of Human Evolutionary Biology at Harvard University, Daniel Lieberman. Daniel is the author of the brilliant book Exercised: Why Something We Never Evolved To Do is Healthy and Rewarding. In this clip, he reveals a fascinating truth: we didn’t evolve to exercise, but movement is key to living well. He challenges some common beliefs that exist around exercise and we discuss simple, practical ways of building sustainable movement habits into our daily lives. Thanks to our sponsor ⁠⁠⁠https://drinkag1.com/livemore Show notes and the full podcast are available at https://drchatterjee.com/514 Support the podcast and enjoy Ad-Free episodes. Try FREE for 7 days on Apple Podcasts ⁠⁠https://apple.co/feelbetterlivemore⁠⁠ For other podcast platforms go to ⁠⁠https://fblm.supercast.com.
Actionable Insights

1. Prioritize Daily Movement

Understand that while humans didn’t evolve for formal “exercise,” consistent daily movement is crucial for living well and overall health.

2. View Inactivity as Harmful

Reframe your perception of physical activity by considering inactivity as detrimental, akin to “poison” or “not having air,” rather than solely focusing on exercise as a “good” thing.

3. Avoid Self-Blame for Inactivity

Recognize that struggling with regular physical activity is normal and not a personal failing, as humans evolved to avoid unnecessary energy expenditure; avoid self-blame and guilt.

4. Find Purposeful, Enjoyable Movement

Reframe physical activity by finding ways to make it purposeful and enjoyable, such as playing sports or walking with friends, rather than viewing it as a chore done solely for “exercise.”

5. Integrate Rewarding Movement

Incorporate physical activity that is either necessary or genuinely rewarding (like play, purposeful work, or a race) into your life to overcome the natural instinct to avoid unnecessary movement.

6. De-medicalize Physical Activity

Shift your mindset away from viewing exercise as a “medicine” or a “pill” to be taken, as this approach often makes it feel like an unpleasant chore and reduces adherence.

7. Embrace Any Level of Movement

Dispense with the belief that only extreme exercise is beneficial; understand that “some exercise is better than none,” and even small increases in activity provide benefits.

8. Increase Incidental Movement

Incorporate small, consistent increases in daily movement, such as taking the stairs or parking further away, as “anything is better than nothing” for improving health.

9. Aim for 7,000+ Steps Daily

Target at least 7,000 steps daily for most benefits regarding all-cause mortality, understanding that more steps (e.g., 15,000-20,000) may offer further advantages for specific conditions like heart disease.

10. Use 10,000 Steps as a Guide

If motivating, use the 10,000 steps per day goal as a general guideline to increase your daily movement, acknowledging its arbitrary origin but practical utility.

11. Reduce Vulnerability Through Activity

Understand that physical activity doesn’t prevent all diseases but significantly reduces your vulnerability to chronic conditions like heart disease and diabetes.

12. Stay Active in Older Age

Challenge the modern notion of sedentary retirement; remain physically active as you age, as this aligns with human evolution and helps maintain health and longevity.

13. Consider Daily AG1 Supplement

Consider incorporating AG1, a daily health drink, into your routine to support digestion and enrich your gut microbiome with beneficial bacteria.

14. Utilize AG1 Subscription Offer

Sign up for an AG1 subscription to receive a free flavor sampler, AGZ sampler, vitamin D3 and K2, and a welcome kit, totaling $87 in free gifts.

15. Read “Exercised” Book

Read Professor Daniel Lieberman’s book “Exercised” to understand why physical activity is healthy and rewarding, despite humans not evolving to “exercise” in the modern sense.

16. Subscribe to Friday Five Email

Sign up for the free “Friday Five” email at drchatterjee.com/FridayFive for weekly doses of positivity, reading recommendations, quotes, and research.

17. Subscribe to Podcast

Subscribe to the podcast to receive new episodes, including long-form conversations on Wednesdays and Bite Size episodes on Fridays.

18. Share Podcast Episode

Share this podcast episode with friends and family to spread valuable insights about physical activity and well-being.