Not sure, but I have my Tragus hooked up to a small electrics pulse generator (TENS 7000) so I’m sure it’s not what you are implying. Very legitimate. I’m sure. Otherwise, why electrocute my ears? Duh.

Actually I’ve been monitoring my HR and HRV using a chest strap and seeing if some gentle stimulation does anything. Supposedly electrical impulses can help a failing vagal nerve and I think ADHD drugs damaged my nerve. It’s a theory. Maybe it’s snake oil but you sound too hyped up, maybe you need some tVNS too.