Although his first name was actually George, this Canadian-born legend hosted more than 8,000 episodes of a famous trivia game.
Who is Alex Trebek?
For men, levels of this primary hormone typically begin to drop by about 1% every year starting around age 30.
What is testosterone?
Gwen Stefani served as the lead singer for this ska-influenced band known for the 1996 power ballad "Don't Speak."
Who is No Doubt?
This sandwich shop became the fastest-growing franchise of the '90s, fueled by its "Eat Fresh" campaign and the introduction of the classic 6-inch and Footlong subs.
What is Subway?
To make a rule or a muscle less strict or rigid; it’s what you do on a Sunday afternoon.
What is relax?
Voiced by Ben Stiller, this theatrical lion is the main attraction at the Central Park Zoo before getting stranded on an island.
Who is Alex the Lion?
Around 30, the production of this structural protein slows down, leading to the very first tiny "laugh lines."
What is collagen?
This 1997 song by Aqua about a plastic doll became a worldwide pop sensation.
What is "Barbie Girl"?
In 1993, this pizza chain introduced a stuffed crust pizza that immediately became a cultural phenomenon.
What is Pizza Hut?
When humans do this, the concentration of carbon dioxide in the air they release is roughly 100 times higher than the air they took in.
What is exhale?
This American statesman and Founding Father was the first U.S. Secretary of the Treasury and the primary author of the Federalist Papers.
Who is Alexander Hamilton?
Scientists say this part of the brain is finally fully developed right around age 25 to 30.
What is the Prefrontal Cortex?
Cher turned back time in 1998 with this dance hit that featured heavy use of Auto-Tune.
What is "Believe"?
This burger chain’s 1997 advertising campaign featured a popular, albeit briefly seen, Chihuahua.
What is Taco Bell?
An 18-wheeler gets its name from having five of these sets of wheels supporting the tractor and trailer.
What are axles?
This influential British fashion designer, known for his dramatic and provocative runway shows, founded his own luxury label in 1992.
Who is Alexander McQueen?
Peak mass of this skeletal tissue is usually reached by age 30; after that, you've got to work to keep it!
What is bone mass?
This Irish band, fronted by Dolores O'Riordan, had a massive 1994 hit with the protest song "Zombie."
Who are The Cranberries?
This term was added to the fast-food lexicon in 1993 when McDonald's allowed customers to "upgrade" their meal size for a few extra cents; it was eventually phased out due to health concerns.
What is Super Size?
Discovered in Russia's Ural Mountains in the 1830s, this rare variety of chrysoberyl is famous for changing from green in daylight to red in incandescent light.
What is Alexandrite?
By the age of 30, this ancient Macedonian king had created one of the largest empires in history, stretching from Greece to northwestern India.
Who is Alexander the Great?
Many 30-year-olds notice they can no longer "bounce back" from an all-nighter because this internal 24-hour clock becomes less resilient to disruptions.
What is the circadian rhythm?
This Seattle band's 1991 album Ten was named for NBA player Mookie Blaylock's jersey number.
Who is Pearl Jam?
In 1992, McDonald's officially phased out the deep-fried version of this signature dessert in favor of a baked version, a move that still divides fans today.
What is the McDonald's Apple Pie?
Often confused with a similar-sounding learning disorder, this term specifically refers to the total loss of the ability to read, usually due to brain injury.
What is alexia?