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Your search for "when" returned 21,977 results
When did humans start smoking, anyway?
health.howstuffworks.com/wellness/smoking-cessation/humans-start-smoking.htm
When did humans start smoking? With today's technology, we know the answer. Take a look at when humans started smoking at Discovery Fit and Health.
Why Do We Do a Little Dance When We Have to Pee?
health.howstuffworks.com/human-body/systems/kidney-urinary/why-pee-dance-science-anxiety.htm
HowStuffWorks looks at some of the theories behind why people tend to fidget when they need to urinate.
How does a car's rearview mirror work when it's in the glare-resistant setting?
auto.howstuffworks.com/question20.htm
How does a car's rearview mirror work when it's flipped upward in the glare-resistant setting?
Do Dogs Know They're Being Photographed?
animals.howstuffworks.com/pets/do-dogs-know-theyre-being-photographed.htm
Do dogs know when they're being photographed? HowStuffWorks looks into the anecdotal evidence on this one.
When you have an itch, what is happening under your skin?
health.howstuffworks.com/skin-care/information/anatomy/question600.htm
When you have an itch, what is happening under your skin? And, why does scratching make it go away?
How much is too much when it comes to perfume?
lifestyle.howstuffworks.com/style/body-scents-fragrances/too-much-perfume.htm
Where do you draw the line with your fragrance? Learn how much is too much when it comes to perfume in this article.
How much is too much when it comes to cologne?
lifestyle.howstuffworks.com/style/body-scents-fragrances/too-much-cologne.htm
How much is too much when it comes to cologne? Learn how much cologne you should put on in this article.
Why Do People Say 'Bless You' When You Sneeze?
people.howstuffworks.com/sneezing.htm
Why do we say "bless you" when there is a sneeze? Learn about the history and meaning behind bless you, the sneeze and gesundheit.
Here's What Happens When You Swallow a Leech
animals.howstuffworks.com/marine-life/swallow-leech.htm
Leech endoparasitism occurs when someone accidentally ingests a leech and it gets attached. Literally. Learn more at HowStuffWorks Now.
Do you have the right to privacy when you're in your car?
people.howstuffworks.com/do-you-have-the-right-to-privacy-in-your-car.htm
Do you have the right to privacy when you're in your car? Learn more about privacy at HowStuffWorks.