Study finds link between Alzheimer’s and circadian clock

Research raises hopes for new therapies that could help tackle disease and symptoms

People who develop Alzheimer's disease can experience sleep disturbances years before the condition takes hold, but whether one causes the other, or something more complex is afoot, has always proved hard for scientists to determine.

Now, researchers in the US have shed light on the mystery, in work that raises hopes for new therapies, and how good sleep hygiene" could help to tackle the disease and its symptoms.