Recent review has indicated the places where cardio benefits of exercise may lie. To gain a more precise understanding of how exercise improves health and whom it helps most researchers analyzed the results of 160 randomized clinical trials with nearly 7500 participants. The meta-analysis is one of the first studies to systematically and comprehensively evaluate the effectiveness of exercise interventions in affecting various health outcomes said lead author Xiaochen Lin from the Brown University School of Public Health. Lin added that because the exact mechanisms linking exercise to intermediate health outcomes are not clear they also wanted to examine the
