How your choice of curtains could increase your risk of devastating Alzheimer’s disease revealed

IN some places around the world, the lights never go off.

From New York City to Tokyo, streetlights and illuminated signs can deter crime and make roads safer.

GettyUsing blackout curtains or sleeping with an eye mask on could help lower your risk of Alzheimer’s, a study suggests[/caption] GettyExcess light pollution has been linked to a higher prevalence of dementia, especially in under-65s[/caption]

But uninterrupted light comes with ecological, behaviour and health consequences, scientists warn.