We all know about pet therapy, but a group of hospitals is deploying canines in an official feel-good mission for patients, Radio Iowa reports. The hospitals in Iowa and Nebraska are offering “wag therapy.” Kris Wiley, a mental health practitioner at CHI Health in Omaha-Council Bluffs, says pooch power is real. “Research has shown that it can reduce anxiety, it reduces people’s blood pressure,” Wiley said. “Some research has even shown that petting a dog will cause our body to start to release oxytocin, which is a feel-good hormone.”