Earlier quoted context omitted.
While I'm ranting: if your interest lies in becoming more productive as a programmer, these are not the droids you're looking for. Some people have put forward anecdotal evidence to the contrary, but I personally can't see it being either likely or worthwhile (taken in isolation). Good sleep, meditation, regular exercise, a good diet, vitamin or fish oil supplements, possibly responsible use of some stimulants (caffe…
And may even reduce you to ranting and muttering to yourself ...
Edit: ok, I scrolled up and now I've got it. I'm a bit slow today, maybe I need some stimulant after all...