Studying mice, pain researchers at Washington University School of Medicine in St. Louis have identified two key components in the pain cascade that may provide targets for more effective analgesic drugs with potentially fewer side effects.

Trigeminal neuralgia, or TN, is a disorder affecting the areas of the face where the trigeminal nerve's branches are distributed, including the lips, eyes, nose, scalp, forehead, and upper and lower jaws. Often caused by an artery that compresses the

Scientists at UCL (University College London) have measured responses to pain in the brains of premature babies and have shown that they are likely to experience 'true' pain rather than simply displaying reflex reactions.