As we make the transition from stage 1 to stage 2 sleep a number of changes occur in the EEG that signal the increasing depth of sleep. Two prominent markers of stage 2 sleep are K complexes and sleep ...

People may count sheep when they cannot sleep, but when they do finally drift off their brains generate the same type of brain wave as their ovine counterparts, according to new research published in ...

During light slow-wave sleep, the thalamo-cortical network oscillates in waxing-and-waning patterns at about 7 to 14 Hz and lasting for 500 ms to 3 s, called spindles, with the thalamus rhythmically ...

Sleep spindles helped predict recovery in unresponsive patients with acute brain injury. About a third of unresponsive patients showed well-formed sleep spindle patterns. Spindles frequently preceded ...

A new Finnish study shows that individual circadian preference is associated with brain activity patterns during the night. Sleep spindles are bursts of oscillatory brain activity visible on an EEG ...

A new study suggests brain inflammation is the key factor linking sleep disturbances with Alzheimer’s disease. It's hypothesized the same overactive immune cells in the brain that ultimately ...

Leading theories propose that sleep presents an opportune time for important, new memories to become stabilized. And it's long been known which brain waves are produced during sleep. But in a new ...

The thought of sleeping in a completely silent room gives me an unparalleled amount of anxiety. For as long as I can remember, I’ve been someone who requires the lull of a whirring fan to help me fall ...