Wondering if you’re a ‘light’ or ‘deep’ sleeper? The science isn’t that simple

If the slightest sound wakes you, you might wish you slept more deeply. But several factors shape how much shut-eye you get.

This Superintelligent Brain Sleeps, Develops a Personality—And Eventually Dies. Is the Singularity Here?

By mimicking our own biological advantages, the researchers believe that AI could eventually become an ever-evolving ...