The triceps make up roughly 2/3 of the upper arm, and without development, a physique can lose its balance. In a recent YouTube video, shared on August 4, 2025, fitness coach Jeff Cavaliere broke down his science-based guide to transform flat triceps.

For decades, Jeff Cavaliere has remained an authority in fitness. His ATHLEAN-X YouTube channel boasts over 14.1 million subscribers, making him easily one of the most-watched fitness educators in the saturated space. Cavaliere doesn’t just interpret insight based on scientific studies; he puts the knowledge to the test, constantly exploring new, innovative ways to enhance training .

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In bodybuilding, arms aren’t just a signal of strength;

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