Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those concussions? The answer is complicated and lies in how the brain responds when...

What has eight arms, three hearts, and and lives in the ocean? An octopus! Join Jessi and Squeaks as they take a dive into the amazing world of the super weird, super smart octopus!

Your mortal enemy has captured you and hooked you up to a bizarre experiment. He's extended your nervous system with one very long neuron to a target about 70 meters away. At some point, he's going to fire an arrow. If you can then think...

We're finally to the end of our time together here on Crash Course Study Skills, so this week we're taking a more holistic approach to being the best learner you can. Part of taking care of your brain is taking care of your whole body,...

Amnesia is a really handy/clich_ literary device and the inciting incident for countless Hanna-Barbera cartoons, but it's also a real, serious affliction caused by major head trauma. Learn how scrambled neurons can permanently alter...

Baylor College of Medicine professor Peter Hotez, MD, PhD, describes his lifelong mission to develop low-cost vaccines and his personal journey as a physician-scientist. After his daughter Rachel was diagnosed with autism and...

What if the universe is self-aware? Is there a cosmic superconsciousness? Could it be a giant brain? Is the universe a conscious mind? There is a short but lazy answer, and there is longer but more...

How Does our Olfactory system work? How do we Smell? It turns out that quantum mechanics plays a big role. What you may not realize is that inside your nose rests a very sensitive quantum device that uses complex...

Science Kids Longest Living Animals

This video explores the fascinating longevity of parrots, specifically cockatoos and macaws, who can live up to 80 years or more. Through their complex brains, intelligence, social bonds, and...

Science Kids Longest Living Animals

This video explores the similarities between humans, elephants, and whales in terms of their long childhood and adolescence, and how this may be linked to their longevity. Scientists have found...

Mental decline isn’t inevitable as you age. From diet to activities, find out what you can do to keep your brain in shape.

Test your vision with this hidden optical illusion – only eagle-eyed viewers can spot it!

Ready for action? Time to get your neurons firing with some action potential. If you thought resting potential was tough to understand, it seems like action potential is that much more difficult. However, thanks to Alie Astrocyte, we...

Behavioral neuroscience explores the reasoning behind decision-making processes in the brain. Test how the compromise effect reveals our tendencies in cognitive decision-making.

Understanding sleep stages for better human health with personal health monitoring devices. Observe your deep sleep, light sleep, awake time, and total time asleep.

Ten top researchers provide real-world examples of the relevance of TOK (Theory of Knowledge) concepts in their research. This interdisciplinary TOK Sampler investigates ten different perspectives associated with the process...

In this video, we learn about the incredible complexity of the human brain, which consists of approximately 170 billion cells, including 86 billion neurons. These neurons communicate through synchronized impulses, creating brain waves...

Your nervous system is why you can see this video, scratch your neck, feel hungry and ask yourself, Who am I? The human nervous system is a fascinating system with 86 billion neurons and about the same number of glial cells. The main...

Memories are stored as microscopic changes at the connections between neurons in the brain. When a person wants to remember something, they have to retrieve the information from the part of the brain where it is stored. The retrieval...

Neurons send signals through a mechanism called action potential. Action potentials are electrical signals that pass through the neuron’s axon. This causes the neuron to pass the signal to the next neuron. Action potentials are the...

Glial cells are various types of brain cells. There are 3 main types of glial cells - astrocytes, oligodendrocytes, and microglial cells. These cells protect neurons, help neurons pass information, and keep the brain healthy. These group...

Why do we dance? We dance to music because of neural connections in our brain. These connections link the part that perceives music, the auditory cortex to the regions that help us move, the motor regions. We might have started creating...

The long projecting part of a nerve cell that transmits impulses away from the body of the nerve cell, to the synapse at its tip.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds...

Everything our brain does, from controlling movement to conscious thought, is achieved by the firing of electrical signals called neurons. Biology - Being Human - Learning Points. Everything our brain does is achieved by electrical...