I agree that stuttering susceptibility is inherited. I also really don't intend to criticize anyone in any way. I'm trying to say, "have hope and keep experimenting". The brain is weird because it's both a physical system and a mental system -- all memories, habits, etc. are stored in brain cells, and these cells [actually grow new connections](http://www.hopkinsmedicine.org/news/media/releases/brain_scientists_figure_out_how_a_protein_crucial_to_learning_and_memory_works) when people learn things. [Meta-analyses](https://www.google.com/search?q=stuttering+treatment+meta-analysis) especially [this one](http://www.asha.org/uploadedFiles/asha/publications/cicsd/2006SEffectivenessofBehavioralStutteringTreatment.pdf) agree that stuttering treatments usually have moderate positive effect. This means that stuttering treatment can sometimes change how someone's brain controls their mouth and diaphragm. (But, results vary, there is a need for more research, and it's not clear how the brain works in detail or what treatments work when.) Look at it like bodybuilding: let's pretend you want 6-pack abs. You might get lucky and be born with genes for skinniness. You might get unlucky and be born with genes that make it impossible. But there's a lot people can do to make the best of the genes they've got (e.g. for bodybuilders: very high protein, low calories, and caffeine, every day, plus occasional weight training). Overcoming stuttering is like getting 6-pack abs: it takes years if you succeed, most people who try fail (but usually make some improvement), people argue a lot about the best way to get there, and a lot of people think that genetics make it impossible for most people. A part of my stuttering as a young person was a mental block about it. A speech therapist once recorded and timed me reading a 7-word sentence; it took me over a minute. When asked if I took longer to read that sentence than she did when she read it, I said "no". I really didn't hear my own stuttering at the time. I mention this both to show that I have been there and to encourage you to see that you might have more options than you realize. I am also saying that I got a lot better. I still stutter noticeably, but a "bad" sentence is now a few obvious repetitions that I quickly move past, not the full-on uncontrollable blocking I had earlier. A big part of moving this far was fluency shaping exercises combined with progressive desensitization (working up from word lists to making phone calls, one small step at a time). Another part was changing my emotions to feel safe when talking to other people and to validate myself more often than seeking others' approval. I don't mean being braver; I mean not having subconscious fear reactions in the first place. This is a lot easier at my age [29] than it was, say, 15 years ago. I don't really know what worked, but overall I got a lot better. I don't know whether or not you can overcome stuttering. You would say, it's inherited, so no, it's impossible. I would say, for some people it's possible, but it's harder than getting 6-pack abs, meaning that it usually takes years and most people who try fail. Good training sometimes beats bad genetics...but usually not. Do you feel lucky?