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Your search for "when" returned 21,976 results
What happens when you blow your nose?
health.howstuffworks.com/human-body/systems/nose-throat/what-happens-when-blow-nose.htm
What is really going on when you blow your nose? Find out at HowStuffWorks.
What Happens When We Sleep?
health.howstuffworks.com/mental-health/sleep/basics/what-happens-when-we-sleep.htm
Why do we sleep? What happens when we sleep? Learn more about sleep from Discovery Health.
How Old Was Jesus When He Died?
people.howstuffworks.com/old-was-jesus-when-died.htm
While 33 is often the "go-to" answer to the question of how old was Jesus when he died, many scholars doubt that age is accurate.
When Is It OK to Drive in the Emergency Lane?
That driver who uses the highway shoulder in bad traffic could face penalties. Learn when driving in the emergency lane is legal at HowStuffWorks.
When did we begin genetically engineering food?
recipes.howstuffworks.com/when-begin-genetically-engineering-food.htm
The practice of genetically engineering food started taking off after some key discoveries about DNA. Learn when we began genetically engineering food.
What happens when you don't brush your teeth?
health.howstuffworks.com/wellness/oral-care/products/when-you-dont-brush-teeth.htm
Humans haven't always been avid tooth brushers, so why do we have to do it now? Find out what happens when you don't brush your teeth.
Why Do We Turn Down the Radio When We're Lost?
science.howstuffworks.com/life/inside-the-mind/human-brain/turn-down-radio-when-lost.htm
You've probably experienced that moment where you're driving, get lost, turn down the radio, and then think, "Why did I just do that?"
How to Tell When Your Kid Is Ready to Drive Alone
It used to be a rite of passage in America: turn 16 and get your driver's license. But the number of teen drivers has decreased as license requirements have gotten stricter. If your teen passes them, does that mean he or she is ready to drive solo?
Why do my gums bleed when I brush my teeth?
health.howstuffworks.com/wellness/oral-care/products/gums-bleed-when-brush-teeth.htm
Your gums may bleed for any number of reasons. Some causes are pretty common and will clear up on their own, but a few may be the sign of something more serious happening.
When Sound Makes You Sick
health.howstuffworks.com/human-body/systems/ear/when-sound-makes-you-sick.htm
There's growing evidence that sound can cause a range of health problems. HowStuffWorks looks at the science.