Asked by Allan Heller in Superstitions, Friday the 13th
Why is Friday the 13th considered an unlucky day?
It’s a little murky, but the origin of this superstition probably goes back to the Last Supper attended by Jesus Christ and his 12 disciples the night before his crucifixion on Good Friday. The 13th person has been associated with Judas Iscariot, who betrayed Christ. Additionally, the number 13 is considered “imperfect” when compared to 12, since there are 12 months in a year, 12 days of Christmas, etc. A connection has also been made to King Philip IV of France who arrested (and later executed) hundreds of the Knights Templar on Friday, Oct. 13, 1307.
Asked by Anabelle Hand in Vaccinations, History of Science
Who discovered vaccines and how?
There is a history of smallpox inoculation that goes back as far as 1000 AD in China湖北体彩app, Africa, and Turkey. However, the person credited with creating the first vaccine is Edward Jenner, an English scientist who pioneered one for smallpox in 1796. His breakthrough came from taking pus from a blister of someone infected with cowpox and using it to inoculate another person, thus preventing smallpox in that person. He developed this treatment after hypothesizing that dairy workers were rarely, if ever, infected with the deadly smallpox virus because most of them were already infected with cowpox, which has a very mild effect on humans.
Asked by Rasheed Connelly in Health, Centers for Disease Control (CDC)
How can you make yourself stop touching your face?
If it helps, you’re not the only one. According to a 2015 study, people touch their faces an average of 23 times per hour. That’s a pretty tough habit to break, but doing so could significantly decrease your risk of contracting infections. One of the most common ways for infections to spread is when you touch something, picking up a germ, and then rub your eyes, nose, or mouth. To kick the habit, experts in hand hygiene (which, yes, is a real thing you can be an expert in) suggest changing something in your environment, like wearing something on your hands or face, to make you realize you’re touching your face. If you’re aware you’re doing it, you can train yourself to stop. And if you really need to scratch your nose or something, they suggest covering your hand in a tissue.
Asked by Elvis Franecki in Exercise, Guinness World Records
What’s the longest anyone has ever held a plank?
George Hood currently holds the record for longest plank at a whopping eight hours, 15 minutes and 15 seconds. So yeah, just a little bit longer than your record. For women, the record is four hours, 19 minutes and 55 seconds, and it was set by Dana Glowacka in 2019. I anticipate your next question is, “How?” because an eight-hour plank sounds pretty impossible. Leading up to his record plank, Hood trained for about seven hours a day, doing 700 push-ups, 2,000 crunches, 500 toe squats, 500 band curls, 30 minutes of cardio, and four to five hours of planking. So, if you’re looking to plank for hours instead of minutes, good luck with that.