Search Results | human
Your search for "human" returned 7,219 results
What causes aging?
health.howstuffworks.com/wellness/aging/aging-process/aging-causes.htm
Aging causes include both genetic and environmental factors. Find out what research says about aging causes and rates of aging.
How did 168 conquistadors take down the Incan empire?
history.howstuffworks.com/history-vs-myth/conquistador-incan-empire.htm
The Incan empire was erased from existence by fewer than 200 men, but how was this possible? Find out how the Incan empire was brought down.
In Vitro Fertilization Overview
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/in-vitro-fertilization.htm
In vitro fertilization is the most common type of assisted reproductive technology. Learn more about how the vitro fertilization process works.
How LRAD Works
science.howstuffworks.com/lrad.htm
What makes sound a weapon? Review the basics of sound and discover exactly how the LRAD produces its "beam of sound." We'll also explore LRAD's hailing and warning abilities and other uses for sound.
How Jet Lag Works
science.howstuffworks.com/life/inside-the-mind/human-brain/jet-lag.htm
Jet lag can be a drain on any long-distance trip. Learn about what causes jet lag and the best ways to prevent and deal with jet lag at Discovery Health.
Why is puberty coming earlier for girls today?
lifestyle.howstuffworks.com/family/parenting/tweens-teens/earlier-girls-puberty.htm
The earlier a girl's puberty occurs, the more likely she is to face unwanted pregnancies. Learn why the earlier a girls' puberty occurs, the greater the risk.
How do dogs' nutritional needs change as they age?
animals.howstuffworks.com/pets/dogs-nutritional-needs.htm
How do dogs' nutritional needs change as they age? Find out how dogs' nutritional needs change as they age at HowStuffWorks.
How to Advance in a Company
money.howstuffworks.com/business/professional-development/how-to-advance-in-a-company.htm
Want to know how to advance in a company? Visit HowStuffWorks to learn how to advance in a company.
Top 10 Movies About Food
recipes.howstuffworks.com/10-movies-about-food.htm
Have you ever left the theater after a movie about food with your mouth watering for the onscreen delights? Check out these top 10 movies about food.
Top 5 Tanning Myths
health.howstuffworks.com/skin-care/beauty/sun-care/5-tanning-myths.htm
Do you know the difference between tanning myths and facts about tanning? Take a look at our list of the top 5 tanning myths and find out.