Blood flow is a cycle that involves your lungs, heart chambers, valves, and blood vessels. Electrical pulses make your heart muscles squeeze and release.
Healthy blood flow is critical to overall health. Physical activity is one of the best ways to make sure your heart and lungs can function well over time. If you have health issues, partner with your healthcare provider on the best way to keep your heart rate and rhythm—and your blood flow—healthy.
The heart is a complex organ, using four chambers, four valves, and multiple blood vessels to provide blood to the body. The flow through the heart is equally complex, with blood moving through the heart, then the lungs, before returning again to the heart.