I work in neurotech/sleeptech and this is the primary function our work focuses on.
However, I also mis-stated that. It is possible to create a slow-wave, however only through magnetic stimulation (rTMS), but that is not realistic outside of a hospital environment.
Ok awesome. Are you saying that because it is an autonomic process or some other reason?
You will probably say no but I wonder if those yogis who can exert some control over heart rate, blood pressure, and breathing pattern might try to target this process as well.
I'm just saying that based on known science. I don't know if anyone has looked at if yogis, etc can control the glymphatic system.
What blew my mind when I got into neuro just over 5 years ago, is that the glymphatic system was only discovered in 2012!!!! We have SO much to learn about the brain.