Could we one day live on Mars? Reid Reimers explains Mars One could help colonize the red planet.

In today's world, balancing school, work, kids and more, most of us can only hope for the recommended eight hours of sleep. Examining the science behind our body's internal clock, Jessa Gamble reveals the surprising and substantial...

South African singer-songwriter Vusi Mahlasela dedicates his song, "Thula Mama," to all women -- and especially his grandmother.

Sleep is a crucial activity for our brains to function properly. But when you’re on the ISS, you face a myriad of distractions and obligations that make it difficult to get good shuteye. So how do these astronauts ever get restful sleep?

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How Can I Fall Asleep?” Allow us at SciShow to explain.

Why do we sleep at night instead of during the day? In this episode of SciShow Hank talks about circadian rhythms, how they work, and how they regulate different processes in our bodies.

If you’ve used a weighted blanket before, you might have felt how weirdly comforting it is, but can it actually help your mental health?

Dolphins aren't just smiley and cute! Jessi gives you 5 reasons why dolphins are awesome in this episode of SciShow Kids.

A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It's also unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet...

Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get...

Squirrels eat a lot of things that are pretty tricky to find in the winter, like nuts and berries. Luckily for them, they have lots of clever ways to store up food to last them through the cold parts of the year!

There's a lot about sleep that we don't understand, like why we even sleep in the first place, for example. Here are some amazing discoveries biologists have made while trying to solve the mystery of sleep.

What keeps you up at night? Pondering deep questions? Excitement about a big trip? Stress about unfinished work? What if the very thing keeping you awake was stress about losing sleep? This seemingly unsolvable loop is at the heart of...

In which John Green teaches you about Homer's Odyssey. If it was Homer's If Homer was even real. Anyway, that stuff doesn't really matter. John teaches you the classic, by which I mean classical, epic poem, the Odyssey. The Journey of...

Belief in the power of witchcraft is pervasive and profoundly entrenched in many parts of Africa. In Tanzania we delve deep into the heart of the continent to investigate a nation that appears gripped by fear and persecution of...

Social-Emotional Learning My Well-Being Managing the Negative Effects of Social Media V1-0002

This video explores the negative impact of social media on mental health, particularly in relation to addiction, sleep disturbances, and...

Why do we dream? What do dreams mean? What are dreams? We know that we dream while we are asleep. Sleep can be divided into two categories rapid eye movement or REM sleep, and non-REM sleep. When you fall...

Howcast - Follow these simple tips to reduce snoring and get a peaceful night’s sleep.

Howcast - Learn the best snoring cures from sleep specialist Janet Kennedy, Ph.D. in this Howcast video.

Howcast - Learn how to make the switch from crib to bed from sleep specialist Janet Kennedy, Ph.D. in this Howcast video.

Howcast - Learn what to do when you can't sleep from sleep specialist Janet Kennedy, Ph.D. in this Howcast video.

Howcast - Learn what sleep therapy is from sleep specialist Janet Kennedy, Ph.D. in this Howcast video.

Howcast - Learn the pros and cons of co-sleeping, also known as bed sharing or family bed, from sleep specialist Janet Kennedy, Ph.D. in this Howcast video.

Howcast - Learn the best way to cure insomnia from sleep specialist Janet Kennedy, Ph.D. in this Howcast video.