Pain isn't any fun, but it's important. It tells you when you're damaging your body, and helps you avoid stuff that might damage it in the future. It's why you don't keep your hand on a hot ...

The paper, by Ashlee Rowe at The University of Texas at Austin in Austin, Texas, and colleagues was titled, "Voltage-Gated Sodium Channel in Grasshopper Mice Defends Against Bark Scorpion Toxin." ...