What’s the greatest mystery in the world? Is it the nature of dark matter, the origins of life on this planet, or maybe it’s whether we are alone in the universe? Or, more profound still, perhaps the ...

Inside a Berlin neuroscience lab one day last year, Subject 1 sat on a chair with their arms up and their bare toes pointed down. Hiding behind them, with full access to the soles of their feet, was ...

At some point, every kid has learned this cold, hard fact of life: it’s impossible to tickle yourself. But why? As the Brain Bank explains, the simple answer is that you’re already expecting the ...

I have just discovered a profoundly human, evolutionarily crucial fact about the new baby in our house: He likes to be tickled. This isn’t a joke. For centuries, the deepest of thinkers—Aristotle, ...