This is was an observational study, so it doesn't establish that too little or too much sleep causes dementia.
A new sleep and dementia research unit at a university in England hopes to learn more about the link between sleep problems and Alzheimer's disease.
While the association between the lack of sleep and dementia is not 100percentt clear, several animal studies have found that during sleep, the brain's capacity to clear toxins like beta amyloid ― the toxic protein that forms plaque in the brains of those with Alzheimer's ― improves.
Braak NFT stage, Lewy distribution (TLBD vs DLBD) and intermediate vs high likelihood DLB were not associated with demographic, clinical, sleep or dementia severity indices.
Patients with PD experience the symptomatic triad of bradykinesis, tremor-at-rest, and rigidity with the possibility of additional non-motor symptoms including sleep disturbances, depression, dementia, and autonomic nervous system failure.
The study, published in The Journal of the American Medical Association, is not the first to find a connection between sleep apnea and dementia, but it is the first to use an objective measure of sleep-disordered breathing — actually counting the number of disordered breathing events during a night of sleep using EEGs and other equipment.
At minimum, the research highlights the potential importance of regular sleep in slowing dementia, as well as the possible neurological risks of consistently getting too little sleep.
Lead researcher Dr Alpar Lazar, from UEA's School of Health Sciences, said: "We live in an ageing society, and sleep disturbances and dementia are two significant health problems in older adults.
Does fragmented sleep lead to dementia, such as that of Alzheimer's disease?
In patients without psychosis/bipolar disorder, common diagnoses included anxiety, depression, dementia, sleep and personality disorders.
