There can be many different causes for numb hands. Carpal Tunnel Syndrome, which is a condition involving a pinched nerve in the wrist, is one of the most common reasons. Typically, with this condition, you’ll feel numbness or tingling in thumb, index, middle and ring fingers.
Joints emit a variety of noises, including popping, snapping, catching, clicking, grinding, grating and clunking. The technical term for these noises is "crepitus", from the Latin "to rattle".
Working your triceps might not always be top of mind, but toning the muscles that run along the backs of your upper arms is key to the smooth functioning of your elbows and to also give bare arms a sleeker look.