Can your diet change the smell of your armpits? Scholars learn the truth behind this and other factors that influence body odor. It covers the biology of what is happening as well as the ways to prevent or cover the offensive odor. To...

Coming soon: A full-length video about bones. Don't disregard this in the meantime, however. It's a valuable introduction that you could insert into your lesson about the skeletal system. With a silly Texas accent, the narrator covers...

An informative video offers a brief overview of the 11 systems in the human body. It gives a brief description of each before pointing out their interdependence. 

Nate is learning about human body systems, and in this episode he finds out about how important the immune system is. The leucocyte army explains that bacteria, viruses, fungi, and parasites can pose a threat. The nose serves as the...

Most realize that Ebola is deadly and highly contagious, but what exactly does it do to your body? The video offers a look at how Ebola spreads through your body systems. It includes how each part of the immune system responds.

Is cold real, or just a feeling? Assist your class in discovering the truth behind the body's assumption of cold as they learn the difference between heat and temperature and why wind causes a person to feel colder. They conclude...

Ligaments are the tough, fibrous connecting tissue between bones that form joints. Explore this connecting tissue with the 20th video in a series of 47 videos on the human body. The narrator first reviews the anatomy of the skeleton...

Some species of fish are more closely related to humans than they are to other species of fish! How did so many species, that aren't closely related, develop the same body shape? A short video explains the evolution of fish. 

Caffeine is a mild stimulant for the nervous system and in moderation, is not harmful to the body. The narrator discusses sources of caffeine, its chemical make-up, and what it does inside the human body. He also shares the recommended...

Sounds travel into our ears at 770 mph. Teach class members about our sense of hearing and how this helps with balance. Learners explore sound as it travels from the air into our ears and is translated by the brain. They then see how...

It is true that Earth has a magnetic field, but do human bodies detect it? Part of a larger series, an interesting video lesson describes an experiment that attempts to answer the question. Using brain scans while exposed to a simulation...

Hug it out! Hugging releases oxytocin, a hormone proven to reduce swelling, thus hugging can heal physical wounds faster. Hormones control many things in the body, from healing it to causing emotions, so understanding more about them is...

More than 27 million Americans have some type of thyroid disease. In the 24th video in a series of 47, scholars see how the hypothalamus-pituitary-thyroid axis works in the human body. The narrator then explores what happens to the body...

A lack of good sleep weakens your immune system by making you more susceptible to infections and making recovery time longer. Video 45 in a series of 47 focuses on the immune system. Pupils hear how the body defends itself, from its...

Since 2004, blood doping in cycling has dropped by 50 percent. The video opens with a narration about blood doping and then focuses on the structure of blood and how its parts work to keep the body alive. Classes learn about the...

Humans ingest approximately 1-5 mg of strontium everyday! An interesting video describes how scientists use the element strontium to learn about people. The narrator explains  where strontium is found and how it gets into and builds...

Explore the nervous system's workings by first looking at the brain and its two hemispheres. Using the example of a split-brain surgery done for epilepsy, the function of language and vision is shown with an interactive component. Paul...

How many words does the average dog understand? According to Dr. Coren, they understand 165, though with training, some understand more than 1,000 — including differentiating between verbs and nouns. The video shares research into what...

Chronic constipation includes those people with fewer than five bowel movements per week. Understanding the causes of constipation helps determine appropriate treatments. Changes in diet, schedule, stress, and age alter the way our body...

Being too clean can inhibit your immune system from functioning properly, thus it is possible that washing your hands too much can actually make you sick. Pupils explore the difference between innate and acquired immunity with a...

Most animals that show a paw preference are split 50/50 with half of the population preferring one side and the other half preferring the other, yet in humans only 10 percent are left-handed. The video explains what part of the brain...

The largest body of water in California, the Salton Sea,  was created by accident. An interesting installment of a video series shares the history of the lake, which is now home to the second-most diverse group of birds in America....

Out of all vertebrates, the largest brain when compared to body size belongs to humans. Studying the working brain presents challenges to scientists. Learn about three of the most common tests used to understand how the living brain...

You are under attack! Every second of your life bacteria, viruses, and more attempt to enter your body. The video explains your immune system and the extremes your body goes through to keep you alive.