It's known as "middle-aged groan," and it afflicts millions who dare try to get off the couch.

BIG QUESTIONS
You may have been taught the old cowboy trick of applying a tourniquet and using a blade to cut the bite wound to suck out the poison. It looks dramatic, but does it really work?
The idiom goes back centuries. And no, it's not 'nipping it in the butt.'
You need to set up both a router and a modem if you want Wi-Fi internet in your home, but there are major differences between the two devices.
“We concluded that birthdays end lethally more frequently than might be expected."
The barrels we see around St. Bernards' necks in paintings and cartoons is the invention of an artist named Edwin Henry Landseer.
All fried chicken tenders qualify as fingers, but not all chicken fingers are tenders.
You may have noticed these weird phone numbers while watching reruns of your favorite ’50s-era TV show—and though they look like gibberish to modern phone-users, they were perfectly normal at the time.
You can’t spell ‘hearty’ without ‘heart,’ or ‘hardy’ without ‘hard.’
Vocal fry describes a specific sound quality caused by the movement of the vocal folds—and it’s nothing new.
Here's what financial experts say.
It's no secret that most fast food "secret sauces" are a riff on Thousand Island dressing.
The answer is a bit complicated.
Until the early 1960s, pimentos were sliced and then stuffed into olives by hand.
According to string theory, there are at least 10 dimensions of space, most of which are impossible for humans to perceive.
‘Of course’ is one of the most versatile ‘yes’ synonyms we have. But what does it actually mean?