Uploaded August 2026 | Updated September 2026, 3 weeks ago

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The UPDATED RP HYPERTROPHY APP: rpstrength.com/hypeapp

Become an RP channel member and get instant access to over 200 videos of exclusive in-depth training and advanced science content! ➡️youtube.com/channel/UCfQgsKhHjSyRLOp9mnffqVg/join

Featuring Dr. Mike Israetel, exercise scientist and RP co-founder, delivering evidence-based training and nutrition insights.

0:00 Testosterone Collapse
2:47 Massachusetts Study
4:20 Israeli Healthcare Data
5:41 The Likely Cause
9:40 Still Falling?
14:28 The Honest Answer
16:24 What Matters For You
18:50 When to Consider TRT