In the case of the British study, from 2019 and led by Daisy Fancourt (from the University of London), a reduction in verbal memory was found in the people evaluated. The terms were more like: the consumption of 3.5 hours of audiovisual content such as Netflix could increase the deterioration of verbal memory or semantic fluency.

I havent read this study-- I would appreciate if you could share a link to the study... But I would say that given the subjects of the study, I think that the effects cannot be wholly attributed to consumption of audiovisual content... I personally think that some audio visual contents like podcasts and interviews help to improve vocabulary and speaking prowess.

However, I think that the effect would have been due to the sedentary posture that is required for consuming audovisual content for extended periods of time.

diagnosed that those who watched more than 2.5 hours a day of television tended to have smaller than normal entorhinal and prefrontal cortexes in their brains.

With this study, I would not say with certainty that degredation of the prefrontal cortex was a direct result of watching movies... I think I heard about this study at some time and they were studying people who were watching traditional TV which included those very dumb adverts and extremely stupid shows...

It would be no surprise to see some level of intellectual decline in a person who consumes a lot of dull content, which was pretty much what traditional TV has been for a while.

However, I agree 100 percent with your point that watching TV or movies, or anything audiovisual actually increases sedentary lifestyle and therefore can increase one's risk for obesity and heart disease.

PS: I always love your comments, they are stimulating and a breath of fresh air.

Thanks for stopping by.