• One of the common dementias is Alzheimer’s disease Top ten Leading causes of death in the US.
  • According to a new study, the time spent in bed and sleeping can cause dementia.
  • Those aged 60-74 are most affected..
  • Previous research has also highlighted the role of sleep quality in memory and dementia..

Sleep can affect physical and mental health and is linked to conditions ranging from heart disease and stroke to depression and obesity.

And new Research Published on September 21 Journal of the American Geriatrics Society It has provided further insights into its role in insomnia.

Researchers in China, Sweden and the UK looked at the sleep data of 1,982 Chinese people with an average age of 70 – none of whom showed signs of dementia at the start of the study.

After an average of 3.7 years, 97 participants (5%) were diagnosed with dementia according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria.

Those affected are mainly between the ages of 60 and 74.

“In most studies, women are twice as likely to develop dementia as men. It’s unusual to find the opposite in this study,” said Dr. Alex DimitriDual Board Certified in Psychiatry and Sleep Medicine and Founder of Menlo Park Psychiatry and Sleep Medicine and Brain FoodMD.

The study found that prolonged bed rest (TB) was significantly associated with dementia. Those bedridden for more than 8 hours are more likely to show cognitive decline on the Mini-Mental State Examination (MMSE) – a test used to measure cognitive impairment.

So why do seniors have to spend so much time in bed?

“As we age, we experience sleep patterns,” said Dr. Michael BraceA sleep expert and clinical psychologist told Healthline. This means, “We don’t seem to be getting the same physical restorative sleep (Stage 3/4) as we did when we were younger.”

Therefore, “people with poor quality sleep may need more sleep to compensate,” Dimitri added.

Other factors may also play a role. Carl W. BasilePhD, Kathleen Tynan Doyle Professor of Neurology at Columbia University College of Physicians and Surgeons.

Depression (because of this, older people More danger) stated that it can make sleep difficult. But there are also many other medical conditions (such as heart disease or diabetes) and medications for them can increase fatigue and sleep needs.

The amount of time individuals sleep has been highlighted by researchers as a critical contributor. The midnight hours are considered the most dangerous. The research paper states, “Every 1 hour before bedtime [before 10 pm] It increases our chances of forgetfulness by more than 25 percent.

The study authors hypothesized that earlier bedtimes may be driven by a disrupted circadian rhythm.

“The parts of the brain responsible for regulating sleep begin to age as we age. This affects our circadian rhythm cycles,” said Dr. David RabinPh.D., is a neuroscientist, board-certified psychiatrist, and founder of Apollo Neuro, a wearable device for stress relief.

Age-related factors, such as using the toilet more often at night, also “influence our ability to get good quality and deep sleep,” Rabin continued. Accumulated sleep deprivation “causes changes in the brain structures that control the weight cycle.”

Other influences may also be at play, Dimitri said.

“People with primary dementia may experience brain fatigue earlier in the day, which makes them want to go to bed earlier,” he said. “‘Sundowning’ is a well-known effect on elderly people who are prone to dementia, and they can become disoriented and confused at night.”

Limitations of the study to be considered

One of the main problems with the study is that TB does not necessarily reflect time. He slept. Sleep duration has been identified by scientists as a critical factor in cognitive health and dementia risk.

Brace explained that TB can indicate problems related to prolonged sleep, such as insomnia, which “can affect and worsen this condition.”

Closest Canadian Research He also pointed out that people with insomnia are more prone to memory loss.

TB also doesn’t take into account the quality of a person’s sleep – which is also thought to be important in cognition and dementia. For example, not getting enough sleep can seriously affect memory.

There is one final consideration you should consider.

“This study and many others are association studies, and they don’t show cause and effect,” Basil explained.

“Therefore, it is not clear whether the observed association (in this case, short or long periods of lying in bed or sleeping) causes dementia or is indirectly related to it,” he said.

The main symptom of dementia is memory loss. However, at all stages of life, “we know that quality sleep is necessary for many, if not all types of memories,” Basil explained.

So what happens when you are in sleep mode? When it comes to memory, two main functions occur.

The first is the process of remembering and ‘storing’.

“Short-term memory is initially stored in the hippocampus when it comes to the brain, which is where information is stored for short-term recall and use,” Rabin said.

“When we sleep, information from the hippocampus enters higher cortical structures that allow it to become long-term memory and integrate with past memories,” he continued.

Rabin says this process is called memory reconsolidation and is particularly influenced by quality REM sleep, or short periods of sleep.

Second, sleep can affect memory over time as our brain flushes out harmful toxins.

“When the brain is active during the day, it produces a lot of what we call ‘reactive oxygen species,’ or reactive waste products,” says Rabin. “When the brain is asleep and able to recover, especially in deep and REM sleep states [it] Removes and removes toxins.

Accumulation of toxins eventually causes additional stress on the brain and prevents memory consolidation.

“In conclusion, the quality of sleep can be as important as the amount of sleep,” Dimitri said.

This study controlled for the onset of dementia in older individuals—the time in life when symptoms most often arise.

“Dementing diseases such as Alzheimer’s disease often have symptoms [among people] In the 60s, although it can occur in the 40s and early 50s,” Dr. Sandra PetersonSenior Vice President of Health and Wellness at Pegasus Senior Living shared with Healthline.

She continued: “It is an ‘umbrella’ term for a group of dementias, of which Alzheimer’s is the most common and involves progressive changes in the brain.

Common signs and symptoms of dementia include:

  • Persistent and widespread problems with memory, cognition, and the ability to perform daily tasks
  • Loss of attention
  • Inability to pay attention
  • Lack of language skills
  • Decreased visual perception
  • Lack of problem solving skills
  • Impaired thinking and judgment

Risk factors in dementia

While this new study (among others) implicates sleep as a risk factor for dementia, it’s not the only actor involved.

“Researchers have looked at a number of potential causes of dementia,” Peterson said. “We don’t know for sure, but it’s likely a combination of factors contributing to this.” [its] growth and development”.

Scientists hypothesize that dementia may be caused by:

  • Inflammation – due to lack of sleep, poor diet, lack of exercise and other unhealthy habits
  • The occurrence of abnormal tau proteins in the brain
  • Genetics
  • Untreated and prolonged depression
  • Inability of the brain to use insulin properly

Sleep has long been associated with dementia. It is believed that poor sleep increases the risk, people with dementia often find it difficult to get a healthy and restful night.

This study did not examine important aspects of sleep such as quality. However, it does highlight the links between dementia and TB and bedtime – which the paper describes as ‘understood’ and ‘rarely underdiagnosed’ respectively.

More research is needed on how TB and bedtime affect dementia.

But in the meantime, the study’s authors say their findings “suggest that cognitive function should be monitored in older adults who report longer time in bed and greater sleep duration.”

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