The chemistry of sleep is relevant to massage therapists because massage can directly influence the body’s production of serotonin. A study on back pain, conducted in January 2000 by the Touch Research Institute in conjunction with the University of Miami School of Medicine and Iris Burman of Miami’s Educating Hands School of Massage demonstrated that in addition to a decrease in long-term pain, subjects receiving massage experienced improved sleep and an increase in serotonin levels. (http://www.amtamassage.org/Volunteer-Connections/Ongoing-Opportunities/Peace-for-Veterans.html)