Cut Alzheimer's risk by walking: It only takes 20 minutes, 3 times a week

The Daily Mail reports:

Taking 20 minutes of exercise three times a week could drastically reduce the risk of Alzheimer’s, research shows.

Cambridge scientists say that even getting off the bus one stop early and walking the rest of the way could help prevent the devastating illness.

They have found that a third of all cases are due to lifestyle reasons including inactivity, obesity, smoking, high blood pressure and having a poor education.

But of these, a lack of exercise was found to be the single most important cause.

Researchers believe regular physical activity ensures there is a steady flow of oxygen-rich blood to the brain.

This is thought to prevent the build-up of plaques – deposits of protein in the brain which cause Alzheimer’s.

A total of 850,000 Britons have been diagnosed with dementia – including Alzheimer’s – although this will more than double by 2050 as the population ages.

Be like Kwai Chang Caine in the show Kung Fu.