If you've ever watched a superhero movie, a professional combat athlete or simply gone to the beach and admired the muscled-up men strutting confidently up and down the sand and thought to yourself, ...

The routine includes exercises like leg extensions, presses, curls, and lunges, which help build strength in the quads, glutes, hips, and hamstrings.

Three young men tell the BBC what's driving them to "cut and bulk" - an intense diet and workout regime.