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BELIEVE IT OR not, the skullcrusher isn't the name of a pro wrestler's signature move. It's actually a classic muscle-building exercise to isolate the triceps, the big muscles on the back of your arms ...

Add Yahoo as a preferred source to see more of our stories on Google. It's time to transform your triceps. In a new video, exercise scientist Mike Israetel shared his five favorite tricep exercises, ...

"We're forcing you to own every aspect of the skullcrusher," says Samuel. "The triceps drives elbow extension, and here, you get to do that with no assistance elsewhere. Then on top of that, you have ...

Yes, biceps curls are great for making you feel like a low-level action hero, but you're a wily gym veteran, so you know that the key to super-swole arms is the triceps. In honor of the ...