Facts about our heart that u need to know ...

I've read few facts about heart recently, and here are few I can share:

1. Every day, the heart creates enough energy to drive a truck 20 miles. 2. The heart pumps blood to almost all of the body’s 75 trillion cells. 3. Only the corneas receive no blood supply. 4. The heart does the most physical work of any muscle during a lifetime. 5. During an average lifetime, the heart will pump nearly 1.5 million barrels of blood—enough to fill 200 train tank cars. 6. In spite of that, heart disease is still the greatest threat to your health 7. Happiness, lack of stress, exercise, and a healthy diet will keep your heart healthy 8. normal heart valve is about the size of a half dollar 9. Because the heart has its own electrical impulse it can continue to beat even when separated from the body, as long has it has a supply of oxygen 10. Grab a tennis ball and squeeze it tightly: that’s how hard the beating heart works to pump blood. 11. A woman's heart typically beats faster than a man's 12. As we said earlier, happiness really does lead to heart health. And so does laughter. Laughing can send 20% more blood flowing through your body and it relaxes your vessel walls. 13. A recent study by Swedish researchers showed that when a choir sings, their hearts rhythms synchronize

14. The first heart cell starts to beat as early as 4 weeks.

15. Heart cancer is very rare as heart cells stop dividing early in life.

16. 75 trillion cells received blood from heart, only corneas dont.