Skull crushers — no exercise has a name more intimidating than this. Sure, burpees are difficult, but their name sounds harmless enough. However, skull crushers have self-inflicted harm written all ...

As the old adage goes, good things always come in threes, so it’s no surprise the most eye-popping muscle in your arms is, in fact, three parts that join together. 'There are three heads to the tricep ...