How Does Skin Tan and Burn?

What happens when your immune system attacks the point of communication between your nerves and muscles? That's an autoimmune condition called myasthenia gravis, and it leads to muscle weakness that starts around the eyes and can progress to the face, neck, and limbs. Learn about ...  Show more

The asteroid belt between Mars and Jupiter is made up of sparse, tiny bodies of rock, ice, and metal that give us a window into our solar system's early days. Learn how Jupiter helped form the astroid belt and how asteroids might've given Earth its water (and life!) in today's ep ...  Show more

It's pretty obvious something's gone wrong when you get a sunburn, but did you know a tan means you've damaged your DNA? Dive into the three Ss of summer and learn all about how to protect yourself from the sun.See omnystudio.com/listener for privacy information. 

For every article about the risks of sun exposure or a guide to sunscreens, you don’t have to look far to find one about the health benefits of sunshine or a how-to for achieving the best tan. Messaging around sun exposure is mixed, to say the least, and it’s no wonder that de ...

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New College-Style Sweatshirt!  An ...

No matter your skin tone, sunscreen keeps your skin safe from harmful UVA and UVB rays. But to use it right, you need to know a few things: What SPF to use, how often to reapply and the difference between chemical and physical sunscreen. We explain what to look for on the back of ...  Show more