human behavior library

 

Human Behavior covers a variety of mysterious, engaging topics. Learn about fear, hiccups, tattoos, and more in this section.

Featured Article:  How can someone die from drinking too much water?

Most of us think of water as the healthiest drink in the world. But in abnormal amounts, it can actually cause death. How can a liquid you need to stay alive end up killing you? See more »

13 Techniques to Cure the Hiccups

13 Techniques to Cure the Hiccups

Have you ever tried holding your breath, drinking water upside down or another bizarre method of getting rid of the hiccups? See our list of 13.

See more »
Can prayer heal people?

Can prayer heal people?

Praying may help you be healthier, but what happens when someone prays for you? Is it possible to quantify the power of prayer?

See more »
Do we really get wiser with age?

Do we really get wiser with age?

It's commonly believed that that grandpa has more knowledge than his young whippersnapper of a grandkid. But do wrinkles on the face really relate to wrinkles on the brain?

See more »
Does contagious yawning mean you're nice?

Does contagious yawning mean you're nice?

When you see someone else yawn, you often find yourself doing it. Yawning is contagious. But what does that have to do with the ability to feel empathy?

See more »
Does living together before marriage lead to divorce?

Does living together before marriage lead to divorce?

Before we plunk down our hard-earned money, we consumers like to know that we'll be happy with our purchases. But do couples who choose to live together before marriage doom their unions from the start?

See more »
Does where you live determine how often you call in sick?

Does where you live determine how often you call in sick?

When you've got a tickle in your throat, you've got two options: Suck it up and head for the coffee pot, or roll over and call the boss. But why do workers in certain places so often choose the latter?

See more »
Fact or Fiction: Lying

Fact or Fiction: Lying

Not all the lies in this quiz will be that obvious. Can you tell fact from fiction, or will we see your picture when we look up "gullible" in the dictionary?

See more »
How can someone die from drinking too much water?

How can someone die from drinking too much water?

Most of us think of water as the healthiest drink in the world. But in abnormal amounts, it can actually cause death. How can a liquid you need to stay alive end up killing you?

See more »
How Death by Cubicle Works

How Death by Cubicle Works

Some days, we'd all rather swallow staples than sit at our desks and stare at a computer screen. But beyond the boredom, is your job literally making you sick?

See more »
How Hiccups Work

How Hiccups Work

Swallowing sugar, pulling your tongue, biting a lemon, holding your breath -- these are all homegrown hiccup cures. What makes hiccups so hard to stop?

See more »
How long can you go without food and water?

How long can you go without food and water?

Gandhi fasted for three weeks while he was in his 70s, but he had water to drink. How long can the average person last without food or drink?

See more »
How Lying Works

How Lying Works

A lie grows until it's as plain as the nose on your face, says Pinocchio's fairy friend. But if you don't see a long nose (or pants on fire), how do you spot a fib?

See more »
How Shepherd Center Works

How Shepherd Center Works

If you were suddenly unable to walk, where would you go for help? How would you regain your independence? What role would technology play? Learn all about Shepherd Center.

See more »
Is my brain making me buy things I don't need?

Is my brain making me buy things I don't need?

Could your impulse buying really not be your fault? New research is looking at how the physiology of our brains affects our financial life.

See more »
Is the brain hardwired for religion?

Is the brain hardwired for religion?

Religion is one of the three things you're never supposed to talk about if you don't want your dinner party to turn into a food fight. But what about looking at religion through the lens of science instead of faith? Is there a connection between our gray matters and our pray matters?

See more »
Top 10 Medical Mysteries We Tried to Solve in 2008

Top 10 Medical Mysteries We Tried to Solve in 2008

The top 2008 medical mysteries HowStuffWorks tried to solve go from wisdom teeth to height. Check out the top 2008 medical mysteries and health questions.

See more »
Top 10 Physical Energy Zappers

Top 10 Physical Energy Zappers

Even the Energizer Bunny might be daunted by holiday traffic at the mall or the prospect of visiting in-laws. But it's not just holidays and family that leave us feeling drained -- you might not even realize what's been zapping your energy.

See more »
What are microexpressions?

What are microexpressions?

Sometimes you meet someone who smiles at you and exchanges pleasantries, but you still walk away feeling certain that you don't like him or her. You're not nuts -- you might be picking up on microexpressions.

See more »
What if I ate the silica packets marked "do not eat"?

What if I ate the silica packets marked "do not eat"?

Silica packets most likely contain silica gel or some other desiccant -- something that absorbs (collects) and holds water vapor. What would happen if you put that gel in your mouth?

See more »
What if I crossed my eyes for 10 minutes?

What if I crossed my eyes for 10 minutes?

"Don't cross your eyes -- they'll stick that way!" That's something most of us have heard from our mothers at one time or another. Can your eyes really get stuck?

See more »
Symptom Checker
Learn more about what ails you. Here are some common symptoms.
Common Symptoms:
Diseases A-Z
A comprehensive guide with three thousand articles, including images and multimedia.
Common Conditions: