THE unirytmi which we always hear as ideal is eight hours. However, as we age, this number can vary. So one says study The University of Cambridge and the University of Fudan completed seven hours to sleep ideal for the middle-aged and elderly.
Chinese and British researchers study data from nearly 500,000 adults aged 38 to 73 from Biobank, a bank of biological samples. Participants were asked about their sleep rhythm, mental health, and well-being, and they participated in a series of cognitive tests, according to the statement.
The group found that sleep duration – both inadequate and excessive – was associated with impaired cognitive performance. This includes negative effects on things like processing speed, visual attention, memory, and problem-solving skills. Seven hours of sleep a night was an ideal amount of sleep for cognitive performance, but also for good mental health — people reported more symptoms of anxiety and depression and deteriorated general well-being if they reported sleeping longer or shorter.
One possible reason for the link between insufficient sleep and cognitive impairment is due to a slow wave – “deep” sleep disturbance. Disorder of this type of sleep has been shown to be associated with memory enhancement and amyloid accumulation. This is a key protein that, when misfolded, can cause “pins” in the brain, which are typical of some forms of dementia.
“A good night’s sleep is important at all stages of life, but especially as we age. Finding ways to improve sleep in older people can be crucial in helping them maintain good mental health and well – being and prevent cognitive impairment, especially in patients with psychiatric disorders and dementia, “said Professor Barbara Sahakia of the Department of Psychiatry at the University of Cambridge.