No worries! My main take-away is that both are associated with "classic" Alzheimer's risk factors. Not sure there's a detailed comment inside the text about which is "worse" though, a lotof the paper was highlighting that the two resources had similar results.

Some interesting things for me

> However, in both the UKBB and the CLSA cohorts, we observed that having a greater number of siblings showed notable effects on increased feelings of loneliness and lacking social support.

I would have expected the opposite but it also makes sense as someone with many siblings (compared to only children friends). I wonder if it's because in early childhood you have a built-in social network and don't have to put as much effort in maintaining friendships as only-children? Or maybe the psychological "I can't do anything BC siblings will tattle". I don't know.

>Watching TV showed strong effects on increased feelings of loneliness and poor social support, while using the computer was linked with less loneliness and better social support

This one is interesting, I wonder if there's an effect of what you watch (are you comparing yourself to like friends (never watched) or Seinfeld (have seen) with multiple close friends? What do they use the computer for, social media and keeping up with kids (I think both cohorts are 45+)

>Finally, in both the UKBB and CLSA, living in an urban environment, as opposed to a rural setting, was associated with higher levels of loneliness and poor social support

I've probably written enough already, but this one also makes sense to me