In addition to completing the comprehensive baseline assessments during SV-1 through SV-3, the extended screening period allows the participant time to consider and discuss their participation in the study. If participants have less than one defined CVD risk factors or refuse to participate in the RCT, they will be offered participation in the observational study (i.e. study in which only base-line measures and subsequent routine measures obtained during usual care will be analyzed). The observational group will serve as another comparison group for the overall chronic disease study.