our weird bodies

Why Are So Many People Nearsighted?

By 2050, half the world will be nearsighted. Researchers tracking the spread of this eye condition (also called myopia) have a few hypotheses about why it's happening. Learn more in this episode of BrainStuff.

How Much Salt Is Too Much?

You've probably heard you should cut back on salt, but we need it to survive -- we're hardwired to crave it. So why cut back? And how much is actually harmful?

Can Your Face's Temperature Reveal Your Mood?

Research shows that parts of a person's face grow cooler depending on their mood and stress level. Could this be used to help people in stressful jobs, like pilots? 

How Do Boogers Form?

Snot is a crucial part of our immune system and sinus health, and boogers are a byproduct of that system. Learn how they form (plus, why eating them might be advantageous) in this episode of BrainStuff.