TED-Ed
TED-Ed: The twisting tale of DNA - Judith Hauck
What do a man, a mushroom, and an elephant have in common? A very long and simple double helix molecule makes us more similar and much more different than any other living thing. But, how does a simple molecule determine the form and...
SciShow
3 Things Your Cat Should Not Be Doing
Cats are known for their curiosity, and as that one saying goes “it killed the cat”. But we can help our cuddly counterparts avoid this sad fate if we watch out for these three everyday things.
SciShow
Social Interaction and the 'Bliss Molecule'
This week on SciShow News, scientists found that social interaction triggers the production of the “bliss molecule” in mice. Plus, eating sugar is about more than just the calories.
Bozeman Science
Elements of a Feedback Loop
Paul Andersen defines the major elements of feedback loops. The receptors and effectors both sense and respond to changes in their environment. The following examples are used to illustrate the importance of feedback loops in maintaining...
SciShow
A New Mathematical Model of the Origin of Life
Scientists have once again used big, complex math equations to help us understand more about the universe we inhabit, this time about the origins of life on earth.
SciShow
How the Keto Diet Went from Arctic Staple to Bro-Science
The keto diet is a high fat, low carb diet that proponents say is not just great for losing weight, but is good for your brain health, too. Does the science behind the diet back those claims up? We delve into the origin of the keto diet...
TED-Ed
TED-ED: What does the pancreas do? - Emma Bryce
Beneath your ribs, you'll find, among other things, the pancreas -- an organ that works a lot like a personal health coach. Emma Bryce explains how this organ controls your sugar levels and produces a special juice that releases the...
Crash Course
Great Glands - Your Endocrine System: CrashCourse Biology
Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development & function.
Bozeman Science
Positive and Negative Feedback Loops
Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback...
Bozeman Science
Homeostatic Loops
Paul Andersen describes four important homeostatic loops in biology. He begins with a brief description of the elements of a homeostatic loop. He then describes how the hypothalamus helps us maintain a stable internal body temperature....
SciShow
The Real Reason It's So Hard to Lose Weight
You probably know that losing weight is really hard. But it may not be just because of your cheat day frequency; your body actually fights back to make losing weight harder.
TED-Ed
TED-Ed: How do carbohydrates impact your health? - Richard J. Wood
The things we eat and drink on a daily basis can impact our health in big ways. Too many carbohydrates, for instance, can lead to insulin resistance, which is a major contributor to cardiovascular disease and Type 2 Diabetes. But what...
SciShow
Your Bones Do More Than You Think
Bones, you probably have them and they're for more than holding your body upright.
Amoeba Sisters
Homeostasis and Negative/Positive Feedback
Explore homeostasis with the Amoeba Sisters and learn how homeostasis relates to feedback in the human body. This video gives examples of negative feedback (temperature and blood glucose regulation) and positive feedback (events in...
SciShow
The Hamster That Saved Thousands of COVID Patients
Forget lab rats — meet the Chinese or striped-back hamster, an unassuming little rodent whose role in research over the years has led to breakthroughs in genetics, pharmaceutics and more!
Curated Video
A Diabetic Alert Dog Becomes a Young Boys Best Friend
When eight-year-old Luke was diagnosed with Type 1 Diabetes, a diabetic alert dog was brought home to help manage his illness.
Curated Video
Saturated fat is not the big problem
Instead of focusing just on saturated fat in the diet, the emphasis should be on eating 'real food,' getting regular exercise and lowering stress, U.K. cardiologists argue
Curated Video
How to Lose Weight with the Atkins Diet
Howcast - Learn how to lose weight on the Atkins Diet in this Howcast video featuring dietician Lisa Moskovitz.
Curated Video
Are Sugar Substitutes like Stevia Safe?
Howcast - Learn if sugar substitutes like Stevia are safe from nutrition expert Alex Jamieson in this Howcast video.
Curated Video
Does Sugar Cause Cancer?
Howcast - Learn if sugar causes cancer from nutrition expert Alex Jamieson in this Howcast video.
Curated Video
8 Tips about Fish Oil & Muscle Building
Howcast - Learn eight tips about fish oil and how it helps build muscle from DreamBodies' Tony DiCostanzo in this Howcast bodybuilding diet video.
Curated Video
Weight Loss Surgery & Diabetes
Howcast - Learn how weight loss surgery can affect diabetes in this Howcast video.
Curated Video
Medical Treatments That Cause Weight Gain
Howcast - Learn which medical treatments cause weight gain in this Howcast video about obesity.