It’s not just the men who flex their biceps to impress the opposite sex — kangaroos do it too! It’s not just the men who flex their biceps to impress the opposite sex — kangaroos do it too!

When it comes to guys hitting the gym and crushing a solid upper body workout, no muscle is more synonymous with strength (and physique) than the biceps. The iconic “flex” pose? That’s your biceps ...

Let’s face it, few muscles draw the same attention in our programmes as the biceps. Whether you're curling heavy or flexing in the mirror, the size of a lifter's arms has long been seen as a sign of ...