Dementia is one of the conditions that has become increasingly common as society ages.
Developing dementia creates difficulties not only for the individual but also poses challenges for their family and friends.

No One Is Immune to Dementia

A 2022 survey by the Ministry of Health, Labour and Welfare estimated that approximately 28% of the elderly population suffer from either dementia or “mild cognitive impairment” (MCI), a condition considered a precursor to dementia.
This translates to a prevalence rate of more than one in four people, making it a condition that could affect anyone in the future.

Is Dementia Linked to Lifestyle-Related Diseases?

Although it often goes unnoticed, dementia is also a condition linked to so-called lifestyle-related diseases.
It is said that having diabetes roughly doubles the risk of developing dementia.
Additionally, leaving high blood pressure or cholesterol issues unmanaged can lead to the progression of arteriosclerosis; this impedes cerebral blood flow and significantly increases the risk of dementia.

If You Suspect Dementia, Start by Reviewing Your Diet

A study conducted in the town of Hisayama, Fukuoka Prefecture, indicated that adopting a dietary pattern—specifically, reducing rice intake while increasing the consumption of foods with protective effects (such as dairy products, soybeans and soy-based foods, green and yellow vegetables, and seaweed)—lowers the risk of developing dementia.
The finding that reducing rice intake is beneficial might come as a surprise.

In recent years, excessive intake of carbohydrates and sugars has drawn attention for increasing the risk of lifestyle-related diseases.
Preventing dementia essentially begins with preventing lifestyle-related diseases, which means diet plays a fundamental role.
Ideally, we should aim to prevent dementia by reviewing our dietary habits rather than relying on medication.