After being suggested by two unrelated acquaintances to look into it, I've gone to many Aspergers meetups only to find out that everything horrible that happened to me from early childhood to early 20s matched 1:1 the lives of people with Aspergers. I've come to understand these people deeply and they feel to me closer like family. The reason things changed after my mid-20s was because of Aikido. Now I can actually withstand crowds to a certain extent, and have realtime spontaneous reactions to people. It also changed how I walk - my walking actually looks human now, and so do other physical movements. This is how it happened:
One of the key factors in an Aspergers' person's life is patterns. They usually attach to patterns and become greatly disfressed during major life changes.
This happens because normal people have a main-purpose CPU for processing everyday information, and a specialized GPU for adaptive realtime behavior, such as mingling in crowds fluidly, partnered dancing, just spontaneity in general. The main CPU's emulation mode of this GPU is very very slow - it's no substitute.
This truth I've ran into not only with myself, but with many Aspergers people I met in person.
And so, a person with Aspergers will spend 2 weeks pre-caching their possible reactions for a social occasion with their CPU, because their GPU is inaccessible. They cannot generate them in realtime, so they pre-cache as many possibilities as they can. If-then, if-then, if-then... And after it ends, they will spend a ton of time analyzing gathered information because it could not be done in realtime. Going over every potential mistake, and adding it to the if-then pile, for the FUTURE...
There is a way, however, to regain access to the GPU. Maybe not for all Aspergers people, but for many. There's a lever by which it can be operated, and that lever is adaptive physical movement.
Aikido is ideally suited for this, because it is a structured Japanese art which limits social interaction (a plus), is usually non-confrontational (another plus), very friendly to newcomers, and, most importantly, Aikido techniques don't work at all until you activate the GPU, and sense what's happening in your training partner's structure NOW. It FORCES your brain to restructure and reach out where you previously didn't know you could, into that unseen area where decisions are made without conscious processing. Eventually you learn to trust your GPU, just like a neurotypical human does.
Considering that Aspergers frequently comes with co-morbid conditions like PTSD from bullying, and depression, Aikido also addresses those. It has been used to treat PTSD in war veterans, because its movements retrain how we perceive conflict on a deeper level. It certainly eliminated PTSD flashbacks I had from high school after walking into every single social faux pas known to man and becoming the laughingstock of the class, that weird dude on whom you'd test your reflexes...