Dear Friends,
If you are anything like me, maybe you’ve suddenly felt a chill while listening to music. Perhaps, you got goosebumps and saw your arm hairs stand on end. Maybe you even teared up.
Read More ...Dear Daniel,
Our brains work hard to help us move, talk and think. They also help us sleep. When we rest, some parts of our brain are active. When we are up and moving around, parts of our brain are actually at rest.
Read More ...Dear Jose,
We live in a world filled with all kinds of smells. Take off a pair of tennis shoes after a long day and you might even get a whiff of something pretty stinky. You can blame it on your bacteria. Millions of these tiny things live on your feet.
Read More ...Dear Georgia,
Imagine you’re riding in the car on a very hot day, when you look out the window and see a shimmering puddle of water up ahead. As you get closer, you find there’s not really anything there. It’s a mirage.
Read More ...Dear Sarah,
At this very moment, several quarts of blood are circulating through your body at nearly 4 mph. But as you’ve pointed out, not everyone’s blood is the same.
Your question made me wonder exactly what we mean when we talk about blood types. I decided to ask my friend Amber Fyfe-Johnson, a researcher at Washington State University who studies cardiovascular diseases--diseases of the blood vessels-- in kids.
Read More ...
Dear Riley,
Humans have hair all over their bodies, including above the upper lip. Of course, not all hair is quite the same. A lot of people have very fine hairs on their faces. Others can sprout a thick beard or mustache.
Read More ...Dear Charan and Aishwarya,
Imagine you are playing a game of soccer and your best friend is on the opposing team. The sun is out, you are having a great time, and you score the winning goal. You’d probably feel pretty happy and so would your team.
Read More ...