How well do you know the workings of your heart? Do you know how much blood it pumps around the body, the average heart beats per minute or that laughter really is the best medicine?
For most adults they have a resting heart rate between 60 and 100 beats per minute - circulating the equivalent of 1/3 cup of blood with each beat for adults, totalling 2,000 gallons daily throughout your body.
Although, the fitter and healthier you are, the lower your resting heart rate. For example, athletes may have a resting heart rate of 40 to 60bpm, or lower.
This blood travels around 60,000 miles through a system of blood vessels - arteries, veins, and capillaries. That's long enough to go around the world more than twice.
On average, a human heart begins beating around four weeks after conception - and doesn't stop until death.
In a resting adult it takes the heart three seconds to pump blood to the lungs, four seconds to reach the brain, and just 16 seconds to reach the toes and back.
It's been found that statistically, those suffering from depression or low moods are at a higher risk of heart disease, for people who live alone their chance is almost double that of the average.
Stress is also a huge factor. Unsurprisingly, Mondays are the most common day for people to suffer heart attacks, and other high-frequency days include Christmas Day and New Year's Day.
In contrast, laughter is thought to be hugely helpful for the heart, increasing blood flow and relaxing the lining of the blood vessels - so keep laughing as you're effectively protecting your heart.
We commonly see men in heart attack awareness campaigns feeling the well-known symptoms of heart attack - pain in the chest and the arms and falling to the floor.
However the NHS list more symptoms to be aware of:
It's also worth noting that it doesn't have to be a severe pain, as some only experience minor pain which is similar to indigestion.
Women can also, like men, experience the pain in their chest, however not all heart attacks in women have this symptom.
They can experience:
And interestingly, as the heart has its own electrical impulse it can continue to beat outside the body as long as it has enough oxygen.