Ready to test your fitness? See how many strict pull-ups you can do in 60 seconds and learn how to improve your strength and endurance with these expert tips.
Summary: Humans have vestigial ear muscles that once helped our ancestors focus on sounds. New research shows these muscles still activate when we strain to hear in noisy environments. Scientists used ...
Strengthen your core and sculpt your abs with this four-move dumbbell workout. Trainer Sandy Sklar demonstrates each exercise to help you perfect your form and maximize results.