Study reveals decline in cognitive function in people over 50 during Covid-19 pandemic

A new study suggests that the Covid pandemic may have affected the brain health of people aged 50 and over in the UK. The study involved over 3,000 volunteers who completed yearly questionnaires and online cognitive tests to measure changes in memory and other mental abilities during the pandemic. The results showed a decline in cognitive function, even among those who did not contract Covid. Experts believe that stress, loneliness, and alcohol consumption may explain some of these findings. They suggest that the fear, uncertainty, and disruption caused by the pandemic may have had a lasting impact on brain health. The decline in cognitive function was particularly pronounced during the first year of the pandemic, when lockdowns were implemented. The decline in memory issues continued into the second year. Those who had mild memory problems before the pandemic experienced the greatest overall decline. The study, called PROTECT, aims to understand how healthy brains age and why some individuals develop dementia. Brain-training games and questionnaires are used to assess memory skills and identify potential risk factors for cognitive decline. The study will continue to follow participants to gain further insights into brain health. Lead investigator Prof Anne Corbett suggests that pandemic conditions may have accelerated brain decline in individuals aged 50 and over, raising concerns about an increased risk of dementia. It is crucial to provide support for individuals with early cognitive decline and promote strategies to reduce the risk of dementia. Dr Dorina Cadar, a dementia expert, emphasizes the need for additional research to understand the long-term consequences of Covid-19 and the related restrictions. While the current findings do not establish a cause-and-effect relationship, there is growing evidence that factors like social isolation can adversely impact brain health. Dr Susan Mitchell from Alzheimer's Research UK states that while genetics play a role in brain health, various lifestyle factors also influence it. Taking care of one's brain through healthy habits, maintaining heart health, staying connected, and staying mentally sharp can help improve brain health.