Life
Do we read too much into our need for sleep?
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How the sheep and cattle virus survives the cold season in northern Europe has been unclear – now it seems bluetongue may have a trick up its sleeve
Global food production is beset by problems – from disease to growing demand for grain – and it will take a concerted effort to head off a crisis
We spend around a third of our lives doing it, so we assume sleep must be crucial for our survival. But that may not be the case, says Emma Young
There's much more to your head than just your mind, says Andrew Robinson