A world without them might not be as nice as we might think...
Need more potassium in your diet? Find out where to get it on this Moment of Science.
Researchers agree that optimum napping time is between fifteen minutes and two hours. During a nap that’s shorter than fifteen minutes, you never enter the most restful phase of sleep. But if you sleep for over two hours, you might not be able to fall asleep when you turn in for the night.
A few things happen as you swallow. The back section of the roof of your mouth, also called the soft pallet, closes off the nasal passages so that food doesn’t go up into the nose.
During the current ice age glaciers have advanced and retreated over twenty times. We’re living during one of the warmer periods when the glaciers have retreated.
"Little Miss Muffet, sat on her tuffet, eating her curds and whey..." Have you ever eaten curds and whey?