TED Talks Daily Sunday Pick: How to use your muscles — or risk losing them | How to Be a Better Human
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Nov 2, 2025 
Join Bonnie Tsui, an author and surfer known for her book "On Muscle and Why We Swim," as she dives into the fascinating world of strength and movement with host Chris Duffy. They discuss the surprising truth that muscle mass can start declining as early as 30. Bonnie shares practical tips on weightlifting and how to maintain mobility, while exploring the cultural significance of muscles and gender norms. Learn how strength can reshape self-perception and the importance of joyful movement in our lives.
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Muscle Loss Starts In Your Thirties
- Muscle loss begins as early as your 30s and is a normal age-related process.
- Bonnie Tsui says planning strength now preserves capability and quality of life later.
Muscle Is A Signaling Organ
- Muscles act as endocrine tissue, releasing signals that affect the brain and other organs.
- Bonnie Tsui highlights that muscles communicate chemically to support cognition and wellbeing.
Lift Challenging Weights Briefly
- Do resistance training with challenging weights you can lift 8–10 times per set to build and maintain muscle.
- Add this to joyful movement rather than replacing activities you love.
