Researchers followed 18,154 adults aged 50 to 65 over eight years. These people did not have dementia at the start of the study.
Results found that people who used the internet at the start of the study had half the risk of dementia compared with those who did not regularly surf the web.
Specifically, people who go online for up to 2 hours a day have a lower risk of dementia, according to the New York Post.
People aged 50 who use the internet for up to two hours a day are less likely to develop dementia
The findings showed that people who were "off the internet" for two hours or less a day were least likely to develop dementia, compared with those who did not use the internet at all.
But too much of anything is not good. Researchers have also found that people who are "online" for 6 to 8 hours a day have a higher risk of dementia. However, this needs to be studied further.
Regular internet use over a period of time in people aged 50 and older slows cognitive decline, the authors wrote.
Most studies in older adults show that internet use is good for the brain, but the harmful effects of excessive use remain unclear.
Nearly 10% of the population aged 65 and over has dementia, while another 22% has mild cognitive impairment.
Online communication has been shown to improve memory in older adults.
A previous study from 2021 also found that older adults who regularly communicate online are less likely to develop dementia.
According to Columbia University (USA), nearly 10% of the population aged 65 and over have dementia, while another 22% have mild cognitive impairment.
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