Stress. It makes your heart pound, your breathing quicken and your forehead sweat. But while stress has been made into a public health enemy, new research suggests that stress may only be bad for you if you believe that to be the case....

An unnoticed industry worth two trillion dollars a year is influencing almost every carbon emission. Sustainability solution seeker Solitaire Townsend calls this sector the "X industry" (where "X" stands for influence), and it includes...

We're taught to believe that hard work and dedication will lead to success, but that's not always the case. Gender, race, ethnicity, religion, disability, sexual orientation are among the many factors that affect our chances, says writer...

The Sun delivers more energy to Earth in one hour than all of humanity uses in an entire year. How can we make this power more accessible to everyone, everywhere? Solar designer Marjan van Aubel shows how she's turning everyday objects...

So you know about Freshwater and Saltwater now and you know that there's not that much Freshwater for us (and other life) to get to. So how do different animals deal with different amounts of water where they live? In this episode of...

In this video Paul Andersen explains how chemical differs from physical change. In the laboratory macroscopic observations are used to infer changes at the particulate level. Evidence for chemical change include gas production, change...

At the end of our lives, what do we most wish for? For many, it's simply comfort, respect, love. BJ Miller is a hospice and palliative medicine physician who thinks deeply about how to create a dignified, graceful end of life for his...

Have you ever read Harry Potter and wished that you were a student at Hogwarts, studying magic with Harry, Ron, and Hermione? Well, your wish might have partially come true, without you knowing it.

In a deeply moving letter to her grandmother, Xiye Bastida reflects on what led her to become a leading voice for global climate activism -- from mobilizing school climate strikes to speaking at the United Nations Climate Summit...

Convincing a predator to attack you might seem like a bad idea, but Trinidadian guppies have a whole bag of evolutionary tricks to help them do just that. But why do they do it, and how does it help them survive?

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