there is a surprising amount of useful material for just about anything on netflix
I've currently started watching a series called TEDtalks:life hacks, and the first episode that was on there talked about body language, not the usual how it effects others but how it can effect ourselves, she talked alot about testosterone levels and being alpha and how even just changing your own posture into power body stances can affect your own self confidence as well as appearing to be confident to others
the other thing that i've seen on netflix is a documentary called "science of sex" which also had some useful material in there
if anybody finds any more material that is potentially useful on netflix , share it!!