Research shows that sleeping less than five hours a day doubles the risk of developing dementia. Moreover, even if it took more than 30 minutes to fall asleep, the risk of dementia was high.
Dr. Charles Chaisler’s team at BWH_Brigham and Women’s Hospital in the U.S. analyzed the health data of 2,812 adults aged 65 and over living in the U.S. and surveyed the incidence of dementia and sleep. Announced on.
The researchers analyzed representative data collected from older people participating in the National Health and Aging Trends Study (NHATS) to investigate the relationship between sleep and dementia and mortality. NHATS is a longitudinal study targeting elderly people 65 years or older who are eligible for the US National Health Insurance’Medicare’ and has been collecting data every year since 2011.
Participants answered sleep-related questions and questions about sleep duration in 2013 and 2014, which dealt with characteristics of sleep disorders and sleep deprivation. The recommended daily sleep time for adults, 7 to 8 hours, was classified as’recommended’ and 5 hours or less was classified as’very little’.
They also answered questions about sleep quality through five Likert scales, which are ways of answering how much respondents agree with the sentences presented. The researchers tracked the data for five years after the questionnaire to collect information about the participants’ health status.
Sleep less than 5 hours, double the risk of dementia↑
When the final data were put together, sleep disturbances and deficiency were significantly associated with dementia as well as overall risk of death over time.
The risk of developing dementia increased by 45% if the time to sleep routinely took more than 30 minutes, and the risk of death was increased if sleep time was less than 5 hours a day or sleep quality was low. In particular, it was found that the risk of dementia and death over the next 4 to 5 years doubled if the sleeping time was insufficient than the recommended sleeping time.
However, Dr. Charles Chasler said, “I cannot definitively say that sleep deprivation and poor sleep quality cause dementia.”
In the future, the researchers explained that further studies on the precise causal relationship between sleep and dementia incidence in the elderly should be conducted.
Reporter Jeong Hee-eun [email protected]
Copyrightⓒ’Honest Knowledge for Health’ Comedy.com (http://kormedi.com) / Unauthorized reproduction-redistribution prohibited
Source: 코메디닷컴 by kormedi.com.
*The article has been translated based on the content of 코메디닷컴 by kormedi.com. If there is any problem regarding the content, copyright, please leave a report below the article. We will try to process as quickly as possible to protect the rights of the author. Thank you very much!
*We just want readers to access information more quickly and easily with other multilingual content, instead of information only available in a certain language.
*We always respect the copyright of the content of the author and always include the original link of the source article.If the author disagrees, just leave the report below the article, the article will be edited or deleted at the request of the author. Thanks very much! Best regards!