Search Results | brain
Your search for "brain" returned 2,467 results
10 Signs You May Be Sleep Deprived
health.howstuffworks.com/mental-health/sleep/disorders/10-signs-you-may-be-sleep-deprived.htm
Are you sleep deprived? About 45 percent of the world's population isn't getting enough sleep. See 10 signs you might be sleep deprived.
What Is Narcolepsy?
health.howstuffworks.com/mental-health/sleep/disorders/narcolepsy.htm
What is narcolepsy? In the movies, people who are narcoleptics just fall asleep out of nowhere - is this true?
Is Chocolate Addictive?
recipes.howstuffworks.com/chocolate-addictive.htm
Can you truly become physically dependent on chocolate? Find out if science supports the claims of chocolate addiction.
Does smiling make you happy?
science.howstuffworks.com/life/inside-the-mind/emotions/smiling-happy.htm
Can smiling make you happy? Take a look at research and explanations behind whether or not smiling can make you happy.
What is a Concussion?
health.howstuffworks.com/human-body/systems/nervous-system/what-is-a-concussion-.htm
Worried that your child has a concussion? Learn to recognize the symptoms of a concussion and what causes them.
Insights on Alzheimer's From the Long-running Nun Study
health.howstuffworks.com/mental-health/dementia/alzheimers-nun-study.htm
HowStuffWorks looks at the long-running study on nuns and Alzheimer's disease and the various lessons learned over the decades.
How Hearing Works
health.howstuffworks.com/mental-health/human-nature/perception/hearing.htm
Hearing is made possible through physical movement, rather than chemical reactions. Learn about hearing and see diagrams explaining the hearing process.
The Ultimate Death Quiz
play.howstuffworks.com/quiz/death-quiz
The Grim Reaper is a personification of death that has been invented and refined over the years to help humans make sense of their own mortality. How much do you know about your own mortality? You can't cheat death, and you can't cheat on this quiz about death, either. So sharpen your scythe and get started.
What makes your arms, legs and feet fall asleep?
health.howstuffworks.com/human-body/parts/question552.htm
What makes your arms, legs and feet fall asleep? Basically, your nerves go a little haywire when your limbs fall asleep. Learn why.
How did language evolve?
science.howstuffworks.com/life/evolution/language-evolve.htm
Let's assume that long ago Homo sapiens communicated by grunting at one another. How and when did all those grunting sounds evolve into a verb tenses, clauses and proper nouns?