<p>VO2 max refers to the maximum amount of oxygen someone can use during intense exercise. &nbsp;We test this as it has been found to be a key indicator of longevity and quality of life as we age, by giving us insight into your disease risk and possible level of independence based on your results. &nbsp;There is a strong connection between cardiorespiratory fitness (CRF) and risk of death - an increased level of CRF reduces your risk of heart disease, high blood pressure, diabetes, stroke and certain cancers, decreasing your risk of death. &nbsp;Someone in the bottom quartile of VO2 max for their age group is nearly four times likelier to die than someone in the top quartile. &nbsp;If you move from the bottom quartile to the 25-50th percentile, you can cut your risk of death nearly in half!<br>For more information about VO2 max, please refer to these sources:</p><ol class="ProsemirrorEditor-list" data-pm-slice="3 3 []"><li class="ProsemirrorEditor-listItem" style="margin-left:32px;" data-list-indent="1" data-list-type="bulleted"><a class="ProsemirrorEditor-link" href="https://pubmed.ncbi.nlm.nih.gov/30646252/">Association of Cardiorespiratory Fitness With Long-term Mortality Among Adults Undergoing Exercise Treadmill Testing</a></li><li class="ProsemirrorEditor-listItem" style="margin-left:32px;" data-list-indent="1" data-list-type="bulleted"><a class="ProsemirrorEditor-link" href="https://www.imrpress.com/journal/FBL/23/8/10.2741/4657">Survival of the fittest: VO2max, a key predictor of longevity?</a></li></ol>