TED Talks
Norman Spack: How I help transgender teens become who they want to be
Puberty is an awkward time for just about everybody, but for transgender teens it can be a nightmare, as they grow overnight into bodies they aren't comfortable with. In a heartfelt talk, Norman Spack tells a personal story of how he...
TED-Ed
TED-Ed: How does alcohol cause hangovers? | Judy Grisel
The molecule responsible for hangovers is ethanol, which we colloquially refer to as alcohol. Ethanol is present in all alcoholic beverages, and generally speaking, the more ethanol, the greater the potential for a hangover. So, how...
SciShow
How Your Baby Changes Your Brain
You might feel overwhelmed, and have no idea what you're doing when you first have a baby, but evolution has prepared you to take care of your kids.
SciShow
SciShow Talk Show: The History of Gender & Kiki the Domestic Cat
This week on the show Dr. Lindsey Doe, host of Sexplanations, walks us through a history of cases that have altered our understanding of gender identity. Then Jessi from Animal Wonders joins the show with Kiki, a domestic cat.
SciShow
The Science of Sleep
If you celebrate American Thanksgiving, odds are you're full of food and pretty sleepy right about now. While you drift off for a post-feast nap, enjoy this compilation of episodes covering all kinds of different sleepy, science-y topics!
TED-Ed
TED-Ed: How do dogs "see" with their noses? - Alexandra Horowitz
You may have heard the expression that dogs 'see with their noses.' But these creature's amazing nasal architecture actually reveals a whole world beyond what we can see. Alexandra Horowitz illustrates how the dog's nose can smell the...
SciShow
SciShow Quiz Show with Phil Plait
Hank squares off against Crash Course Astronomy host Phil Plait in our special Valentine’s/Old Timey Medicine edition of SciShow Quiz Show!
SciShow
The Magic of Being 'In the Zone'
When you feel like you can get so much done, and nobody can stop you, you might be experiencing what psychologists call "flow." But what’s actually happening to your brain when you're in that state?
SciShow
Parasitic Wasps Found Inside 30 Million-Year-Old Flies | SciShow News
This week, definitive evidence that wasps were just as brutal millions of years ago as they are today, and some interesting effects caused by naked mole-rat poop.
SciShow
Weird Pregnancy Tests
Hank takes us on a trip through the history of pregnancy tests through the ages, from ancient Egypt to the first home pregnancy tests of the 1970s. It's generally not a very pretty story, but it should help make us very grateful for the...
SciShow
3 Weird Things That Happen When You're Pregnant
Lots of things go crazy in a woman's body when she's pregnant, but Hank tells you about three cool phenomena you might not have heard about. You'll want to thank your mom when you find out what they are!
SciShow
Studying Poop to Save Species
Poop kind of stinks, but the stuff inside of poop can tell us a lot about the natural world.
TED Talks
Lisa Mosconi: How menopause affects the brain
Many of the symptoms of menopause -- hot flashes, night sweats, insomnia, memory lapses, depression and anxiety -- start in the brain. How exactly does menopause impact cognitive health? Sharing groundbreaking findings from her research,...
SciShow
Why Do People Have Periods When Most Mammals Don't?
Few mammals actually get periods every month, or even at all, but why? Understanding what menstruation really is and why it happens could help ease symptoms & treat conditions that stem from the reproductive system.
SciShow
Could Squirrels Be the Key to Long Distance Spaceflight?
Space is hard on the human body, but a certain ground squirrel might have the guts to show us how to last longer in space.
SciShow
There Are More Than Two Human Sexes
In high school biology, we learn that humans are born with either XX or XY chromosomes, and that a person’s internal and external sex organs match those chromosomes. It turns out, however, that sex isn’t that straightforward.
SciShow
Why Do You Always Get Sick After Exams
Why can you usually stay healthy while you’re going through a stressful situation, but then you get sick right after?
SciShow
Circadian Rhythm and Your Brain's Clock
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.
SciShow
How a Bee Becomes Queen
Royal jelly! For bees, it’s what makes all the difference between a queen and a worker.
SciShow
The Unexpected Connection Between Estrogen and Autism | SciShow News
There's a lot we don't understand about autism spectrum disorder, but this week scientists announced that they may have found a link between the disorder and elevated hormone levels.
Bozeman Science
The Endocrine System
Paul Andersen explains the major elements in the endocrine system. He explains how glands produce hormones which target cells. He differentiates between water soluble and lipid soluble hormones. He then describes the hormones and actions...
SciShow
Why Did You Skip a Period?
Have you had a normal menstrual cycle and then you suddenly miss a period? There are different reasons why this can happen, and if you don't experience a period you were expecting, you’ll probably want to talk to your health care...
SciShow
The Science of Men
Learn about the history of dudes, and a new theory about deep voices in this new episode of SciShow News. You know, science... bro... stuff.
SciShow
What’s the Deal with Antibiotics and Birth Control
You might have heard that you should use a back-up method of protection if you’re taking birth control pills and antibiotics at the same time. Turns out, you might not have to worry about it.