Researchers have linked depression and insomnia to an increased risk of dementia

A study by scientists at St. Louis University has shown that people over the age of 50 who suffer from both depression and insomnia are significantly more likely to experience Alzheimer's disease and various forms of dementia. This was reported on November 19 by Medical Xpress magazine.

The researchers analyzed the medical records of about 2 million patients. They found that people who simultaneously suffer from depression and insomnia have a 91% increased risk of developing dementia. At the same time, the risk of patients with only diagnosed depression reaches 70%, and only with insomnia — 11%. At the same time, the indicator does not depend on race.

The study highlights that depression is the strongest risk factor for developing dementia, but when combined with insomnia, it increases significantly. These results suggest that early treatment of depression and sleep problems may reduce the likelihood of dementia in the future.

"Mental health care is an essential part of dementia prevention, especially among the elderly. Too many people with depression and insomnia remain undiagnosed or untreated. Increasing access to mental health therapies and services can significantly reduce the risk of developing Alzheimer's disease and related dementias," said Ahn Sangnam, PhD, associate professor of health Management and Policy at St. Louis University, lead author of the study.

He also noted that the study contributes to the growing body of evidence that mental health and sleep quality are key factors for brain health.

Everything glial is simple: a new drug for dementia will bring back sound thinking

How intercellular "mail" helps to defeat an incurable disease

Earlier, on November 13, Medical Xpress pointed out the link between low income and the risk of dementia. According to the study, an increase in income by half reduced the likelihood of an additional risk factor by 9%.