Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

As fun as claw games are, the jaws are always disappointingly weak, and you usually end up with bupkis. What if the jaws were completely within your control? That’s the idea behind [Upside Down Labs]’ ...

Claw foot is sometimes called claw toe or hammertoe. It is a condition where your toes are bent into a claw shape. You may be born with claw foot or you may develop it later in life. Here’s what you ...