While dementia is often associated with memory loss, it's crucial to understand that the condition can also impact speech, thought processes, emotions and behaviour. This means that dementia can manifest a variety of symptoms affecting the whole body, some of which are less noticeable than others. is a syndrome marked by an ongoing decline in brain function.
Although there is currently no known cure, early detection of warning signs can allow for earlier access to treatment and support. Experts at have pointed out that subtle changes in sleep patterns could act as a 'silent alarm' for dementia. Numerous studies indicate that changes in sleep patterns during middle age could be a sign of the disease.
The research reveals a link between individuals who slept less than six hours during middle age and a higher risk of developing dementia, compared to those who slept seven or more hours. Evidence suggests that individuals with Alzheimer's disease or other forms of dementia often undergo changes in sleep patterns. Experts believe that certain areas of the brain regulate sleep-wake cycles, leading to these changes.
In dementia patients, poor sleep is thought to be caused by the protein amyloid. It has been noted that Alzheimer's patients typically have higher levels of amyloid in their brains, resulting in disrupted sleep. .
Studies have also suggested that sleep deprivation may play a role in the development of dementia, with specialists recommending seven to eight hours of quality.