The Physical Activity and Aging study (PAAS) is a longitudinal, open cohort study that seeks to shed light on the many relationships that exist between physical activity, health, disease, and mortality in older adults (i.e., individuals aged 65 years and above). We have added our cardiovascular assessments to this ongoing cohort at Iowa State to provide a more comprehensive look at heart and blood vessel function. If you are 65 years or older and interested in participating in PAAS, please e-mail paas@iastate.edu.