Executive functioning has to do with making decisions that requires planning on long range tasks and sticking to the plan and then carrying the tasks of it out.

There are certain things with ADHD that mess with executive functioning for me e.g. focusing on short term rewards rather than longer term outcomes, more active DMN(default mode network) i.e. the part that makes you worry about past or the future, memory encoding problems(i.e. how things go from short term memory to long term memory) etc.

Technically speaking, executive functions are roughly divide as: - nonverbal working memory. - internalization of speech (verbal working memory). - self-regulation of affect/motivation/arousal. - reconstitution (planning and generativity).