In a groundbreaking discovery, British scientists have identified a crucial factor that mitigates the risk of early-onset dementia, aids in prevention, and alleviates its symptoms.

Contrary to the previous belief that dementia, particularly with symptoms emerging before the age of 65, was solely influenced by genetic factors, researchers found that a daily intake of vitamins A and D could significantly reduce the risk.

Previous studies had linked vitamin D deficiency, depression, and a history of stroke to an increased likelihood of early-onset dementia, with additional risk factors including alcohol abuse, social isolation, hearing loss, and heart disease.

However, a comprehensive analysis of data from over 350,000 individuals in the UK Biobank project revealed 15 modifiable lifestyle and health-related factors that could lower the risk of early-onset dementia. The study, published in the journal JAMA Neurology, identified these factors as crucial in both increasing and decreasing the risk of natural dementia.

Notably, the researchers emphasized that most of these factors are adjustable, offering potential avenues for intervention. The National Health Service (NHS) in Britain, responding to these findings, recommends a daily vitamin D supplement of 10 micrograms for individuals over the age of four, especially if they have limited sunlight exposure. Vitamin D is naturally produced by the body through sunlight exposure.

The term "young-onset dementia" refers to dementia occurring before the age of 65 and affects more than 70,000 people in the United Kingdom.

While activities such as puzzles and physical exercise are acknowledged methods for cognitive health, combating loneliness is crucial, as it is a recognized risk factor for cognitive decline and, subsequently, dementia.

Recognizing cognitive decline symptoms at an early stage and working towards prevention remain essential goals for scientists in the ongoing battle against dementia.