Blood Analysis: Blood samples will be drawn by either the research nurse or a physician. Samples will be processed at the local hospital to determine the subject's lipid profile, fasting glucose and CRP levels. Serum also will be extracted from the blood samples. Markers of systemic inflammation (cytokines) will be quantified in the serum samples. Specifically, tests will quantify levels of the proinflammatory cytokines IL-1α, IL-1β, IL-6, IL-17 and TNFα as well as the anti-inflammatory cytokines IL-4 and IL-10. Analysis will be performed at Dalhousie University (SG, PI) using a BioRad Bioplex Suspension Array System. All serum samples will be stored at -20°C until they are required for analysis.