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We’ve been conditioned to think of Covid-19 as a respiratory disease—but it’s not just about the lungs. Evidence is emerging that the coronavirus can cause heart damage in people who’ve had mild symptoms or none at all, especially if those people exercise while they’re infected. If you've just had Covid—even if you didn't have symptoms—you need to be aware of myocarditis. That’s cardiologist-speak for what happens when the muscular walls of the heart become inflamed, weakening the organ and making it more difficult for it to pump blood. It’s not a newly discovered condition, and it turns up pretty rarely, but when it does, it’s most often triggered by an infection. Strenuous activity while the heart is weakened can cause swelling in the legs, dizziness, shortness of breath, and—in serious cases—irregular heartbeat, cardiac arrest, and sudden death.

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lda TIL that the world’s 15 largest shipping vessels produce more air pollution than all of world’s 750 million cars.
VBgk8 TIL the original Winnie-the-Pooh, Eeyore, Piglet, Kanga, and Tigger have been on display at The New York Public Library since 1987. They originally belonged to Christopher Robin Milne, whose father decided to make a bedtime story about the characters.
OoAN1 TIL of the cortical homunculus, a physical representation of a male human based on a neurological map of the parts of your body that send the most sensory information to the brain.
4k1rb TIL that not only did Leonardo da Vinci write with a special kind of shorthand that he invented himself, he also mirrored his writing, starting at the right side of the page and moving to the left. Only when he was writing something intended for other people did he write in the normal direction.
6Ebyw TIL Allan Pinkerton, the founder of the Pinkerton Detective Agency, was in Chicago, Illinois when he tripped on the pavement and severely bit on his tongue. His tongue became infected with gangrene, ultimately leading to his death.