After millennia of study, modern imaging has revealed the secret of chameleons' ability to move their eyes in a nearly ...

A peripheral nerve block is a procedure done by an anesthesiologist to provide postoperative pain relief for people having knee replacement surgery. The anesthesiologist (a doctor specializing in pain ...

How Does an Epidural Work? You may have heard of the epidural – the pain-relieving anesthesia that some pregnant women get when they’re giving birth. But it has other uses, too. This procedure isn’t ...