A martial art for a programmer
oscardelben: For me personally martial arts helps to build a character which in turn may help you grow as a programmer, but that's an effect of growing as a person. I practice sanda which is similar to muai thai but there are many other arts which focus more on the inner side, and you can gain a lot of concentration and peace by practicing them, which in turns could help you as a programmer when you have to deal with difficult tasks.