Seeing or hearing someone yawn can make you yawn. This phenomenon is not limited to humans; some animals experience contagious yawning, too. But why is yawning contagious? Brain cells called mirror ...

There are certain things our bodies do so often and so automatically that we barely notice them. Yawning, growling stomachs, and runny noses are good examples. Each is a universal part of our daily ...

Yawning is surprisingly infectious, spreading quickly among friends and family. The researchers have long studied why humans catch each other’s yawns. The phenomenon is linked to empathy, social bonds ...

Science. Euphoria among dentists: anti-caries substance capable of repairing teeth created and product could be on the market next year Science. Forget everything we thought we knew about the end of ...

Instead, smile — and smile a lot — because many might not know that smiling can produce a lot of health benefits for you and others. Recommended Videos In honor of Friday being National Smile Day, ...