Human Body

The small intestine is part of the

Change is an important part of every living organism. Enzymes are substances that work hard to help cause and speed up biochemical...

Yawning is a bodily activity common in most of the vertebrates. It is also known as oscitation. In humans, it occurs as early as 20 weeks after conception. It also has been proved that it is contagious and we will most probably yawn when someone next to us does the same. It is even more...

Have you ever had a dream that later came true? Or had a feeling something was going to happen – and then it did? What’s going on here? Some people claim the answer is ESP, extrasensory perception. In other words, a sixth sense beyond our

In cartoons, characters who’ve been hypnotized can be forced to do crazy things they’d never do in real life. But that’s not how hypnotism really works. Read on to learn more. Fun Facts Franz Mesmer, an Austrian scientist, first introduced the idea of...

In the nucleus of every cell in your body are 23 pairs of chromosomes, one from each of your parents. These pairs of chromosomes contain genetic material that determines your development, such as the color of your

Ever wonder why you get a fever when you’re sick? Fever is your body’s way of fighting an illness. When you’re sick, compounds caused by bacteria send a message to your hypothalamus, a small part of your brain that acts...

If you’re left-handed, you’re part of a small group – only about 15 percent of the population. Scientists have a couple of varying theories about why some people are left handed and some are right handed.   Fun Facts One theory says that left...

People often avoid talking about it, but death is a part of life. Plants and trees go through a predictable cycle each year of birth, death, and rebirth. Animals are born, grow, have babies, and die. Humans do the same. Have you ever seen a dead bird or animal? Have you wondered what happens to...

Find out how doctors, scientists, and even politicians worked together to bring an end to this deadly disease in the United States. Fun Facts Polio has been around for thousands of years. An Egyptian mural depicts a priest with a withered leg, one of the common...

The ancient Egyptians had an elaborate medical system that was initially built on magical traditions, but later became more scientific. The Edwin Smith Papyrus (3000 B.C.) and the Kahun Gynecological Papyrus (1800 B.C.) are two of the oldest known medical books....

How are medicines made? How do medicines know which part of the body to help? Imagine you’re a child living thousands of years ago. You get a serious illness and you’re running a high fever. How would your parents help you? How would a doctor help...

You’re jumping on your friend’s trampoline when – ouch! – the two of you collide and you land on the ground. When you stand up, you feel a sharp pain in your leg. You look down and notice that your leg is at an odd angle. Yep, you’ve got a broken leg.   Fun...