Discussion on the paper (57 points, 9 days ago, 47 comments) https://news.ycombinator.com/item?id=44131411

“They compared each participant’s brain activity on two separate nights — one when they consumed caffeine capsules three hours and then one hour before bedtime, and another when they took a placebo at the same times.”

As someone who consumes lots of coffee I worry a little about that and always read caffeine articles but in this case doesn’t everyone already know caffeine right before bed is a bad idea?

I wonder if there’s a tolerance that builds over time which would also lead to the middle aged / older cohort being less affected than the younger one.

But, old people, who have taken coffee have good mental health, contrary to alcohol drinkers.

So I can dream faster!