![Several factors make people more susceptible to the flu in winter. Several factors make people more susceptible to the flu in winter.](https://images2.minutemediacdn.com/image/upload/c_crop,w_724,h_407,x_0,y_24/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/voltaxMediaLibrary/mmsport/mentalfloss/01jkbntawwv5xd238f0q.jpg)
![Matt Soniak Matt Soniak](https://images2.minutemediacdn.com/image/upload/c_fill,w_180,ar_1:1,f_auto,q_auto,g_auto/images/voltaxMediaLibrary/mmsport/mentalfloss/01fw71t9gkrfxw5h6tc0.jpg)
Matt Soniak
Joined: Nov 21, 2012
Matt writes about science, history, etymology and Bruce Springsteen for both the website and the print magazine. His work has also appeared in print and online for Men’s Health, Scientific American, The Atlantic, Philly.com and others. He tweets as @mattsoniak and blogs about animal behavior at mattsoniak.com. He lives in Philadelphia with his girlfriend, two cats and a large collection of bourbon whiskeys.
![Several factors make people more susceptible to the flu in winter. Several factors make people more susceptible to the flu in winter.](https://images2.minutemediacdn.com/image/upload/c_crop,w_724,h_407,x_0,y_24/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/voltaxMediaLibrary/mmsport/mentalfloss/01jkbntawwv5xd238f0q.jpg)
![One of the biggest differences between a ship and a boat is size—but it’s not the only one. One of the biggest differences between a ship and a boat is size—but it’s not the only one.](https://images2.minutemediacdn.com/image/upload/c_crop,w_2666,h_1499,x_0,y_0/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/voltaxMediaLibrary/mmsport/mentalfloss/01jk6ep9accjw9gydwx0.jpg)
Ship vs. Boat: What’s the Difference?
![They’re coming for your candy. They’re coming for your candy.](https://images2.minutemediacdn.com/image/upload/c_crop,w_4248,h_2389,x_0,y_395/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/GettyImages/mmsport/mentalfloss/01j9kkr402zjtbmty05y.jpg)
Why Do We Go Trick-or-Treating on Halloween?
![Sending out an SOS. Sending out an SOS.](https://images2.minutemediacdn.com/image/upload/c_crop,w_2119,h_1191,x_0,y_48/c_fill,w_1080,ar_16:9,f_auto,q_auto,g_auto/images/voltaxMediaLibrary/mmsport/mentalfloss/01grp9b6xsdrhgqfpcc1.jpg)
What Does “SOS” Stand For?
What’s the Origin of the Jack-O’-Lantern?
The first jack-o'-lanterns were made with turnips, not pumpkins.
Why Does Asparagus Make Your Pee Smell Funny?
Not everyone experiences funny-smelling urine after eating asparagus, but it's common enough that it poses one very big question: why does it happen in the first place?
Why Do We Knock On Wood?
Discover the origins of the classic phrase 'knock on wood,' which could be tied to a Victorian-era children's game or have more direct ties to old pagan traditions.
How Did the Donkey and Elephant Become Political Mascots?
Andrew Jackson’s 1828 political campaign kicked it off, and cartoonist Thomas Nast made the political symbols really gain traction.
How Much Gold is in a Gold Medal?
The amount of gold in Olympic medals is regulated, and there’s a lot less than there used to be.
What Do the Olympic Rings Mean?
Pierre de Frédy, Baron de Coubertin, intended the rings to represent nations “united by Olympism.”
Who Was General Tso, and What Does He Have to Do with Chicken?
The most popular Chinese takeout dish in the U.S. is a sweet, spicy, saucy chicken entree named after a famous Hunanese general who actually preferred pork.
What Legal Authority Does Judge Judy Have?
While Judith Sheindlin was once a real, live judge, she’s not acting as one on her show.
How One Grieving Father Got Lawn Darts Banned
Lawn darts were banned in 1988, but not before seriously injuring many children and killing at least one.
What's the Difference Between Ketchup and Catsup?
Tomato, tomahto.
Why Do Birds Fly South for the Winter?
Genetics, seasonal changes, and Earth's magnetic field all play a role.
Why Do We Capitalize ‘I’?
Some languages capitalize several of their pronouns. Some don’t capitalize any of them. English just capitalizes ‘I’—but why?