Biology and technology grew closer together when scientists manufactured neurons that acted like those in a brain! And birds evolved to protect themselves in two ways: fight and flight.

The spiral of the Milky Way is not as smooth as we once thought because an arm not so far from home appears to be broken! And we may have discovered the answer to why a local asteroid puts on the appearance of a comet.

Houseplants can be great for your mental health, but eating some of them can be far worse for your bodily health than you might think.

Chap
ters

View all

DIEFFE
NBACHIA

0:47/> 2...

We have some good news this week for all the James Webb fans out there, as well as a look a some creative chemistry that may help us find the first solid evidence of an exomoon!

Hank gives us a tour of the most important table ever, including the life story of the obsessive man who championed it, Dmitri Mendeleev. The periodic table of elements is a concise, information-dense catalog of all of the...

So, we know what materials are, but can we make new materials? Or improve the materials we already have? In this episode of Crash Course Kids, Sabrina shows us how Material Scientists are working on these two things today. Also, your...

Mr. Andersen explains the basics of balancing chemical equations. A visual guide shows you how to change coefficients to balance the atoms in reactants and products.

Did you know the moon has a tail? No one did, until 1998, and we've been trying to figure it out ever since.

There have been lots of recommendations over the years to eat a low-sodium diet. We've talked about the evidence on this before. Well, get ready to taste salt again. Research points to the conclusion that low sodium diets don't do much...

Marketed as a natural and healthy choice, fast-food grilled chicken can contain 7-10 times more sodium than home-cooked breast, along with phosphates and hidden sugars. We break down the science of food additives and why your...

From beef flavoring in your McDonald's fries to fake grill marks and sodium levels that shatter daily limits, we're uncovering the hidden ingredients and industrial tricks that make fast food so irresistible—and so unhealthy.

What's Really In Your Chicken Nuggets?

Crispy Oven ÒFriedÓ Chicken

Howcast - Learn how much water to drink when taking supplements from registered dietician Glen Tobias in this Howcast video.

Howcast - Learn the health pros and cons of butter versus margarine and other butter substitutes from nutrition expert Alex Jamieson in this Howcast video.

Howcast - Learn what makes beans a superfood from nutrition coach Lisa Neilsen in this Howcast video.

Howcast - Learn how to get rid of a side stitch during a run from competitive runners Doug Oldiges and Stephanie Coburn in this Howcast video.

Howcast - Learn how to live with congestive heart failure from Dr. Dennis Finkielstein in this Howcast video.

Howcast - Ionic compounds consist of two or more ions held together by electrical attraction. Ions with a positive charge are called cations while ions with a negative charge are called anions.

There's nothing in the average commercial sports drink that you can't mix together for your own, far less expensive and healthier version. Check out this easy recipe.

Limiting your daily salt intake can help prevent major diseases. Here's how to cut back.

Eating between meals can actually be good for you — as long as you select your mini-meals wisely.

While the basic ingredients of this Japanese mainstay are healthy, Americanized add-ons can pack on the fat and calories.

A traditional Thanksgiving meal is loaded with salt. Here are some ways to prepare a low-sodium feast.