How Much Sleep Do You Actually Need?
AdultsHealthHumanNeuroscienceWellnessIf you get too little, or too much, your brain could suffer.
How do we smell?
AdultsHumanNeuroscienceScienceBiologyAn adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the air get translated into smells in your brain? Rose Eveleth charts the smelly journey through your olfactory epithelium and explains why scent can be so subjective.
Usain Bolt vs. a Cheetah
AdultsAnimalsHumanSportsEntertainmentThe fastest man alive, Usain Bolt, runs a virtual race against nature's fastest land animal.
Jumpy
AdultsAnimalsPetsHumanEntertainmentJumpy, 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.
Why do we cry? The three types of tears
AdultsBiologyHumanSciencePsychologyHealthWhether 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.
Inspiring Video Of The Day: I Like Being 98.
AdultsLifePhilosophyHumanThis film tells the story of Evelyn who, despite her limited resources, goes out of her way to help her neighbour.
The Invisible Universe Of The Human Microbiome
AdultsBiologyHumanScienceHealthThe next time you look in a mirror, think about this: In many ways you're more microbe than human. There are 10 times more cells from microorganisms like bacteria and fungi in and on our bodies than there are human cells. But these tiny compatriots are invisible to the naked eye. So we asked artist Ben Arthur to give us a guided tour of the rich universe of the human microbiome.
How sugar affects the brain
AdultsBiologyHealthHumanNutritionMental HealthAddictionWhen 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.
Take a Seat - Make a Friend?
AdultsLifeSocietyHumanFriendshipSocial MediaSoulPancake hits the streets to see what happens when two strangers sit in a ball pit... and talk about life's big questions.
Could Your Brain Be Hacked?
AdultsHumanProgrammingTechnologyNeuroscienceCybersecurityCould technology be used to control your brain?
Can You Trust Your Eyes?
AdultsHumanSciencePsychologyHow do you know what you're seeing is real? These Illusions bring about the truth!