Half-hour power naps can reverse much of the chemical damage done to the body by a poor night's sleep, an experiment suggests.

The experiment suggests that even if we aren't naturally savers, we can use tricks to persuade our brains to behave more as though we are.

Now, though, a new experiment suggests that free will could be back.

This experiment suggests that the hypoactivity might represent a failure to match the actual and predicted sensory feedback, resulting in an inhibition of the movement.