Ask someone in the weight room to point to their trapezius muscle, or “traps” in gym-speak, and they’ll probably gesture toward the small mounds of muscle nestled in between their neck and shoulders.

Fitness Pro Superhuman Troy demonstrates the best exercise to blow up your traps and shoulders fast.

In a recent Reddit thread, natural bodybuilders discussed the exercises that grew their traps the most, with one simple movement standing out as a clear favorite from the 100-plus replies: shrugs. The ...