Eating an orange a day can reduce the risk of developing dementia

It's not an apple but an orange a day that keeps the doctor away. Turns out oranges, or any other citrus fruit, can apparently significantly cut down your risk of dementia.

A study by a team of scientists out of Tohoku University in Japan believe citrus fruits can slash your risk of developing dementia or Alzheimer's by almost a quarter.

Their research was published in the British Journal of Nutrition and is the first major study on investigating the consumption of citrus fruits on a large number of people.

Over 13,000 middle-aged or elderly men and women were tracked for several years.

It was found that those who had a daily intake of citrus were 23 percent less likely to develop the disease than those who had citrus less than twice a week.

The news comes at an important time. Researchers at the University College London and Liverpool University say the number of people affected by dementia in England alone will rise by 60 percent by the year 2040.

In the United States, someone develops Alzheimer's every 66 seconds. According to the Alzheimer's foundation, it's the 6th leading cause of death in the nation.

RELATED: Other foods that may prevent Alzheimer's