Declining Work Performance May Be an Early Sign of Dementia, Study Finds

A new study suggests that a sustained decline in workplace performance and productivity could be an early indicator of young-onset dementia, appearing more than a decade before the condition is formally diagnosed.

The findings highlight the importance of recognizing changes in cognitive performance among working-age adults, as earlier diagnosis could improve access to treatment, support, and long-term care planning.

Finnish Researchers Analyzed Thousands of Cases

Researchers in Finland examined data from nearly 800 people diagnosed with young-onset dementia and compared it with information from approximately 7,000 healthy individuals.

Young-onset dementia refers to dementia diagnosed before the age of 65. The condition can affect memory, thinking, emotional well-being, and a person’s ability to perform daily tasks and maintain employment.

Income Declined Years Before Diagnosis

According to the study, individuals who later developed young-onset dementia experienced noticeable financial consequences long before receiving a diagnosis.

Researchers found that annual income was, on average, $13,800 lower among affected individuals 15 years before diagnosis compared with healthy participants.

Over a 12-year period, the cumulative loss in income reached approximately $86,000, reflecting the long-term impact of declining work capacity.

Experts Stress the Importance of Early Recognition

The study was led by neurologist Dr. Eino Solje, who said young-onset dementia affects people during some of the most productive years of their lives.

He noted that the condition can reduce work performance, increase the risk of unemployment, and force some individuals to leave the workforce earlier than planned.

Researchers said that recognizing persistent and unexplained declines in workplace performance may help healthcare professionals identify young-onset dementia earlier, allowing patients to receive timely diagnosis, treatment, and support.

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