Episode Details

Nearly every warning you've heard about lifting weights was written down before anybody checked it. We trace where those warnings came from, starting with a Harvard student in 1854 and ending with a curve on a graph that's being used today to argue you can lift too much.

Along the way: the men who built themselves with barbells and then sold the public five-pound dumbbells, because iron was expensive to mail and a booklet cost pennies. The muscle-bound myth, which nobody could define when a graduate student surveyed 45 physiologists about it. The 1961 report that took the deep squat out of every branch of the American military, measured with a device its author built himself and never validated. The claim that lifting stunts a child's growth, which no professional body ever actually made. And the argument women got, which was never about injury at all.

Timestamps:

• 0:00 Intro
• 2:33 2,500 years of people picking up heavy things
• 7:24 George Windship and the Health Lift
• 10:56 Blaikie's truck horse and the muscle-bound myth
• 14:59 Bernarr Macfadden
• 19:39 Charles Atlas and Dynamic Tension
• 27:01 Carl Klein, a homemade device, and the parallel squat
• 30:57 Thomas Delorme and three sets of ten
• 35:20 Kids, growth plates, and where the stunting idea came from
• 41:43 Women, "you'll get bulky," and Dudley Sargent in 1912
• 50:05 Pregnancy, from 1949 to a 2025 barbell study
• 53:40 The pattern, and the curve on next week's graph

Resources:

Buy the book, Signal: https://www.barbellmedicine.com/shop/learning/signal/

New Barbell Medicine Hybrid 5K and 10K Run + Lift Programs

Barbell Medicine coaching and templates: https://www.barbellmedicine.com

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