Resting heart rate: what is considered a "normal" resting heart rate?

2,500,000,000 Not Earth's age. The American Heart Association says it's the average number of heartbeats in a lifetime.

This vital organ: Blood distributes oxygen to all of our organs and tissues for maximum performance

This vital organ: Blood distributes oxygen to all of our organs and tissues for maximum performance

Every day, your heart pumps 2,000 litres of blood. Heart rate is the number of beats per minute.

Athletes examine their heart rates to evaluate whether they're working out hard enough.

It's also vital to monitor your resting heart rate, or how rapidly it beats while you're relaxed and quiet.

Cranberries can help you think more clearly.