There are plenty of reasons oxytocin is referred to as the cuddle chemical. Levels of the hormone surge during caresses, and researchers think it evolved as a way to reduce stress and fear of others long enough to enable contact necessary for procreation. It also helps facilitate bonding between mothers and newborns. But for the first time, scientists have found that Momâ??s innate ability to soothe â?? and to boost oxytocin levels â?? is as powerful whether sheâ??s offering a hug in person or consolation over the phone.