# How Much Exercise Do You Need to Lower Your Risk of Cardiovascular Disease?
Regular exercise cuts cardiovascular disease risk, but the dose matters. New research clarifies exactly how much activity protects your heart.
The American Heart Association recommends 150 minutes of moderate-intensity aerobic activity per week, or 75 minutes of vigorous activity. Meeting these guidelines reduces heart disease and stroke risk by roughly 35 percent compared to sedentary lifestyles.
Moderate-intensity exercise includes brisk walking, recreational cycling, or tennis. Your heart rate should reach 50 to 70 percent of your maximum. Vigorous activity like running or competitive sports pushes you to 70 to 85 percent of maximum heart rate. Both approaches work equally well for cardiovascular protection.
The relationship between exercise and heart health isn't linear. Doubling your activity time doesn't double your benefit. Studies show most protection comes from hitting that initial 150-minute threshold. People who exercise 300 minutes weekly see modest additional gains, but the return diminishes beyond that point.
Consistency beats intensity for most people. A person who walks 30 minutes five days a week gains more protection than someone who runs hard once weekly. The body responds to regular stimulus, adapting by strengthening the heart muscle and improving blood flow.
Strength training also matters. Adding two sessions of resistance work weekly enhances cardiovascular benefits beyond aerobic exercise alone. Muscle tissue helps regulate blood pressure and glucose levels, both tied to heart disease risk.
Age, fitness level, and existing health conditions shape individual needs. Someone with a history of heart problems should consult their doctor before starting an exercise program. For healthy adults, starting with 10 to 15 minutes of daily movement and gradually building to 30 minutes works well.
The good news: you don't need a gym membership or expensive equipment