The deltoids are the muscles that cover the front, back and side of the shoulder joint — and they are essential for everyday movements like raising your arms, lifting a child or carrying groceries.

Superhuman Troy demonstrates the best dumbbell-only shoulder workout for building big, impressive deltoids without requiring a barbell or any additional gym equipment.

View post: Yankees' Anthony Volpe Shares the Surprisingly Simple Recovery Habit That Keeps Him at the Top of His Game Strong, well-developed shoulders enhance a physique and project power and ...

Add Yahoo as a preferred source to see more of our stories on Google. When I first started lifting, I was obsessed with building a physique that looked powerful from every angle. And if there's one ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. We’re going to start ...