I first started training at the Beast Fingers Climbing gym in Denver last fall. The gym is run by Aman Anderson, a climbing coach and the inventor of the Grippul and Grippul Two. Intrigued by his ...

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My 8-year-old niece went for her first guitar lesson recently, and her music teacher suggested an exercise in which she was to lay her hands palm down on a flat surface and wiggle each finger in turn.