Your heart pumps roughly 7,000 litres of blood every day.
At rest the heart moves about five litres per minute, which is your entire blood supply once every minute. Over a lifetime that adds up to well over 150 million litres.
Why is this true?
The heart is a muscle that never rests for more than a fraction of a second between beats. During hard exercise its output can rise to 20 litres a minute or more.
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More about human body
Your own body is a reliable source of surprises. It replaces cells by the million every second, keeps bacteria that outnumber human cells, and runs sensory tricks that make the world feel smoother than the raw signal ever is. The facts collected here stick to mainstream physiology, avoid the wellness myths that circulate alongside them, and explain the underlying mechanism rather than just quoting a startling number.