Science
Heart-Pounding Facts About Your Own Body That Are Hard To Believe. Wow.
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14. In 1929, German surgeon Werner Forssmann did the first mapping of a human heart. He mapped HIS OWN HEART by inserting a catheter through his arm vein.
15. Heart valves are about as big as a half dollar coin.
16. Laughter really is the best medicine. A good chuckle sends up to 20% more blood through your body and relaxes vessel walls.
17. When a choir sings in harmony, their heart beats synchronize.
18. A heart can continue beating on its own outside the body, if provided oxygen. It does not rely on electrical signals from the brain.
19. Grab a tennis ball and squeeze it tightly. Thats how hard the beating heart works to pump blood.
20. The world”s first heart transplant occurred in December 1967. Dr. Christiaan Barnard of South Africa successfully performed the procedure, though the patient only lived for 18 more days.
21. Most heart attacks occur on Monday.
22. She”s not nervous. A woman”s heart naturally beats faster than a man”s heart.
23. It is not known why people associate the heart with love, though Greeks likely started the association.
24. The first pacemaker had to be plugged into the wall.
25. After experiencing an emotionally traumatic event, your body releases stress hormones into the blood stream that can temporarily “shock” the heart and even mimic heart attack symptoms.
(via List25)
I don”t know about you, but I”m headed to the gym the ASAP. If heart disease can happen to the Pharaohs of Egypt, and they had the Gods on their side, who”s going to look out for me? Except me, I suppose…
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