This is hilarious. Zapping yourself in the brain with [TMS (transcranial magnetic stimulation)](https://en.wikipedia.org/wiki/Transcranial_magnetic_stimulation) is probably a delicate procedure, but there are people out there who are willing to try it, using *equipment they made themselves*. * The inimitable Ben Krasnow (of "Applied Science" YouTube fame) takes it on. [[Part 1]](https://www.youtube.com/watch?v=HUW7dQ92yDU) [[Part 2]](https://www.youtube.com/watch?v=B_olmdAQx5s) (though he does say he has experience with this from his day job) * [Instructables.com](https://www.instructables.com/id/Transcranial-Magnetic-Stimulation-TMS-Device/) * [Open-rTMS.sourceforge.net](http://open-rtms.sourceforge.net/about.html). The project bills itself as "very early alpha stage", and no code changes have happened since 2014, though the last commit message is "Everything is working". * [a MATLAB toolbox for controlling commercial TMS machines](https://github.com/nigelrogasch/MAGIC/wiki) * software to simulate what effect on the brain different magnetic fields would have [](https://github.com/SCIInstitute/BrainStimulator#brainstimulator) [](https://simnibs.github.io/simnibs/build/html/index.html) Possible dangers of doing DIY TMS: * Side effects of professional TMS are: Headache, scalp discomfort at the site of stimulation, tingling, spasms or twitching of facial muscles, lightheadedness, [fainting and seizures (very rare)](https://scholar.google.com/scholar?q=transcranial+magnetic+stimulation+syncope+seizure), and the induction of electrical currents in implanted devices such as pacemakers and defibrillators.