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, ...

Ripped. Shredded. Jacked. Swole. Which are you? Gym jargon such as this, which refers to the size and definition of muscles, has long been heard exchanged between pumped men in gym locker rooms - and ...