A daily caffeine hit in the form of a cup of coffee could help lower the risk of developing Alzheimer's, it has emerged.
Research conducted at the University of Dakota School of Medicine and Health Sciences shows that a regular dose of caffeine blocks the disruptive effects of high cholesterol that scientists have previously linked to the disease.
Throughout the study, rabbits were given three mg of caffeine each day – the equivalent of one average-sized cup of coffee – and fed a cholesterol-rich diet.
It was noted that, after 12 weeks, the blood brain barrier - which protects the central nervous system from the rest of the body's circulation - was "significantly" more intact in rabbits receiving a daily dose of caffeine.
Jonathan Geiger, of the university, told the Press Association: "For the first time we have shown that chronic ingestion of caffeine protects the blood brain barrier from cholesterol-induced leakage."
He added that as caffeine is a "safe" and "ready" drug it could have an important part to play in Alzheimer' therapies in the future.
This follows news that drinking three cups of tea a day could lower women's risk of suffering a stroke.
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