The clocks have gone back, leaving many of us reaching for the coffee as our body clocks struggle to realign. But there are many aspects of sleep that still leave experts scratching their heads...
Sleep, drugs and mental health How altered states of consciousness could keep us happy
Every night, we experience an altered state of consciousness called dreaming. Could we harness this power to boost our mental health?
Up all night to get happy: psychiatrist Professor David Veale explains how sleep deprivation, under controlled conditions, can treat depression.
Life in the (intermittent) fast lane Have breakfast a little later, and dinner a little earlier, and reap the health benefits
Have breakfast a little later, and dinner a little earlier, and reap the health benefits.