@cat246 @esikora @sears, fellow members like @deekayyy84, @lamerex4, @lindasmith1222, @ds2400 may be able to tell you more about their experiences with Fisher Wallace device.

"The Fisher Wallace is a cranial electrotherapy stimulation (CES) device which stimulates the brain to produce serotonin and other neurochemicals. It's a portable, battery-powered generator permitted by the FDA for symptomatic relief of insomnia, anxiety and depression, and for treating chronic pain (although the agency recently proposed imposing new restrictions on such devices)." Read more here: https://blogs.scientificamerican.com/mind-guest-blog/why-i-get-my-brain-zapped/

@adronicus provides their experience in detail in this related post https://connect.mayoclinic.org/comment/56505/