Two workouts a day, no cheat meals, and zero room for error, the 75 Hard Challenge promises discipline and transformation. Dan Koh and Neil Humphreys explore what 75 Hard really involves, whether it’s backed by science, and what listeners need to understand before trying it.See omnystudio.com/listener for privacy information.

<p>Two workouts a day, no cheat meals, and zero room for error, the 75 Hard Challenge promises discipline and transformation. Dan Koh and Neil Humphreys explore what 75 Hard really involves, whether it&rsquo;s backed by science, and what listeners need to understand before trying it.</p><p>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.</p>

Thank Fitness It's Fitness: Can you handle the 75 Hard challenge?