From using words to overthrowing regimes, shared awareness is necessary for people to coordinate. The cognitive scientist explains to Nature how it works. When Everyone Knows That Everyone Knows...: ...

At some point in the past decade or two, dance-music d.j.s discovered a way of punctuating their sets with a prank. Just as the music was reaching a crescendo, it would glitch, then cut out completely ...

If you’re unsure whether you’ve entered perimenopause, try tracking your periods or speaking with a menopause specialist. You can also check for lesser-known symptoms, such as tingling limbs or brain ...

You don’t buy me, borrow me, or steal me, I’m handed over freely at first. Break me once, and I change forever, and I am challenging to repair. Keep me well, and I multiply. What am I? Trust. Some ...