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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.

oBomY TIL The Romans created the first road signs. Most signs told you how many miles you were from Rome as well as who built the road and who was the last person to repair it.
XQ9E TIL a man was arrested and convicted of being a homosexual after witnesses caught him drinking Baileys Irish Cream.
LQeEp TIL about the 1822 massacre on the Greek island of Chios by Ottoman empire troops that killed up to 50,000 people
69yvm TIL Adolf Hitler had survived at least 42 assassination attempts
ON5g TIL that over a quarter of unmarried Japanese males aged 30-40 are virgins