Should men and women work out differently? Are rest days really necessary? And how did a group of 19th century German gymnastics enthusiasts transform America? Casey Johnston, author of the She’s a Beast newsletter and the new book A Physical Education, stops by to share some fitness facts that will really pump you up. Plus: The importance of strength training for cat owners.

Casey's links: caseyjohnston.website and shesabeast.co!

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Photo via the Library of Congress. Check out our episode “9 Page-Turning Secrets of the Library of Congress” to learn more about this incredible institution!

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Debunking Muscle Myths with Casey Johnston!