Your heart beats 100,000 times a day — that’s roughly 35 million beats per year and 2.5 billion beats over the course of life.

With each beat, the heart pumps blood through a vast network of veins and arteries, delivering oxygen and essential nutrients to every cell while simultaneously removing carbon dioxide and waste.

In fact, your heart pumps so much blood that it travels about 12,000 miles (19,000 km) through your body in a single day, which is twice the diameter of Earth.

And this remarkable organ functions tirelessly, acting as the engine that keeps your body running year after year on end. The sheer number of heartbeats over a lifetime is a testament to the incredible durability and resilience of this small yet powerful organ.

What’s more, from infancy through old age, the heart continuously adapts to our changing needs, whether we’re exercising, resting, or experiencing stress. So remember: Taking care of your heart ensures that it can keep taking care of you.