News
Rather than being a precursor to sleep, yawning is designed to keep us awake, say US researchers. But why does seeing someone else yawn make you to do the same? Yawning is an involuntary action that ...
Laughter is indeed infectious, according to a new study. Researchers have shown that the mere sound of giggles tickles the same area of the listener's brain that is activated when smiling.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results