How strong is the evidence for Aerobic Exercise?

Research on aerobic exercise consistently links regular cardiovascular training to improved heart health, better blood pressure control, and gains in cardiorespiratory fitness, with supporting evidence from randomized trials in hypertensive and older populations as well as broader reviews on obesity and heart-failure management. That evidence is currently rated strong (82/100), built on 5 published studies, including 2 randomized controlled trials -- enough for real confidence in the effect.