What’s cause and what’s effect?
This would be determined in a carefully formulated study using control groups. If the variable is the consumption of sfv while measuring the outcome, the cause would be fairly clear.
Unfortunately not.
That would measure how much sfv distract. It doesn’t clarify if people watch sfv because they have no self-control, or if they have no self-control because they watch sfv.
I’m not sure about scientific evidence, but I do feel like I can increase my attention span by removing quick sources for endorphin, serotonin etc…
So, if I always have videos lined up to watch, for example, I condition myself that it should just take a few seconds and no effort before the hormones kick in.
If I instead subject myself to boredom, I start being more willing to put in effort, which can also come in the form of paying attention for longer.