If this detail keeps you awake at night, it may be an early sign of dementia.

A recent study r& ;reveals the importance of dreams on mental health. But be careful… It may disturb your sleep rhythm.

Whether we remember it or not, we spend two hours a night dreaming, or 25% of our total sleep time. Despite this, the realm of dreams remains uncertain for scientists. There is still no consensus on their meaning or significance. By definition, dreams are considered as a series of images, of representations of the mind having as a characteristic an illusory self-consciousness.

In an interview with Ouest-France, Benjamin Putois, a clinical psychologist, nevertheless emphasizes their benefits on our psychological well-being: “We can affirm that dreams have a function: they help us digest our emotions. Nothing to do with the expression of impulses or fantasies linked to sexuality. described by Freud and defended by many psychoanalysts."

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Jean-Michel Gaillard, a renowned sleep specialist, described nightmares as “an anxious dream, particularly rich and agitated”. Often linked to our experiences, they can proliferate in cases of stress, anxiety or even post-traumatic stress (PTSD). Specifically, nightmares are the result of concerns, worries, and unregulated emotions. Many studies have also investigated the impact of Covid-19 on sleep. It has been proven that the frequency of nightmares increased in participants who contracted a disease.

A report published in the journal The Lancet goes further. It highlighted the influence of bad dreams on an individual's psychological state. The study notably assessed the cognitive decline of 600 individuals aged between 35 and 64 and 2,600 people aged 79 and over. The results reveal that the risk of dementia is higher in people who regularly have nightmares.

Dementia refers to a group of symptoms that affect brain function and is currently the seventh leading cause of death worldwide. Every year, there are nearly 10 million new cases. But don't panic: nightmares do not necessarily lead to the development of neurodegenerative diseases. In fact, for a healthy adult, it is common to have them once a month.