How Much Sleep Do You Actually Need?
Adults Human
If you get too little, or too much, your brain could suffer.
Watch This Smart Crow Ask Human For A Drink
Adults Human
Thirsty crow comes to humans for help
Jumpy
Adults Human
Jumpy, a Border Collie and Blue Heeler mix, has been training with his owner Omar von Muller ever since he was a puppy. In this video, he's demonstrating the famous "Skidboot" routine.
Usain Bolt vs. a Cheetah
Adults Human
The fastest man alive, Usain Bolt, runs a virtual race against nature's fastest land animal.
Why do we cry? The three types of tears
Adults Human
Whether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particularly watery day in the life of Iris (the iris) as she cycles through basal, reflex and emotional tears.
Why Do We Yawn?
Adults Human
What makes yawning so contagious?
How sugar affects the brain
Adults Human
When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation.
Emotional baby! Too cute!
Adults Human
She was only ten months old when this video was taken, her reaction is priceless !
Could Your Brain Be Hacked?
Adults Human
Could technology be used to control your brain?
Can You Trust Your Eyes?
Adults Human
How do you know what you're seeing is real? These Illusions bring about the truth!
Weird Facts About How You See
Adults Human
You're doing it right now. It's time to learn something about it.
How Old Are Your Ears?
Adults Human
How high can you hear? Take this 'test' to see how old your ears are!
Man reunites with Gorilla
Adults Human
Man reunites with Gorilla he raised from a�baby
Isolated tribe man meets modern tribe man for the first time
Adults Human
In the XXI century the team of Jean-Pierre Dutilleaux explorer and ethnographer had the privilege to contact in 1998, after many obstacles, with Los Toulambis a tribe that had never seen a white man, or had been involved with the outside world.
How to Memorize | How to Remember Names | Memory Speaker
Adults Human
Memory speaker and memory expert, Ron White, gives a quick 20 minute speech with tips on: - How to remember names - The value of remembering names - How to memorize using the roman room or method of loci - Eat foods good for the memory - Study tips for students
Gee Atherton gets hunted by a Peregrine Falcon
Adults Human
Downhill mountain bike legend, Gee Atherton, is hunted by the fastest bird in the world, a peregrine falcon. Set in the epic landscape of Antur Stiniog, North Wales, Gee is tested in the ultimate experiment between man and bird.
Sleeping in Space
Adults Human
It's bedtime on the ISS. CSA Astronaut Chris Hadfield shows us how astronauts sleep in space.