How to use your muscles — or risk losing them

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Bonnie Tsui |

How to Be a Better Human

• May 2025

Did you know that you start losing muscle mass as soon as the age of 30? Author and surfer Bonnie Tsui explores how to build strength as you age with Chris Duffy, host of the "How to Be a Better Human" podcast. Watch as Bonnie tries to teach Chris how to surf while weaving in lessons on the benefits of weightlifting, maintaining mobility and adding more movement into your life. This episode is part of a series of bonus videos from "How to Be a Better Human." You can find the extended interview on the TED Audio Collective YouTube Channel.