Biomarkers of the Response to Osteopathic Manipulation

Inclusion Criteria: * Healthy adults between the ages of 21 and 60 Exclusion Criteria: * Eating or drinking anything but water or chewing gum within an hour of the appointment * Rib fracture * History of unstable cardiac arrhythmia or symptoms related to the chest cavity (difficulty breathing, chest pain) * Symptoms suggestive of bowel obstruction (abdominal bloating with pain, nausea and vomiting, diarrhea) * Pregnancy * History of Sjogren's Syndrome