Breathing break

The speaker needs to inhale fresh air now and then. It is difficult to talk while inhaling, try yourself! (Do this on a quiet spot where no one can hear you...)

Some people can talk very long before they take fresh air. A listener who is annoyed with this, will loose track of the story and will even feel tight in the chest.

In TV commercials (especially washing powder adds) they use to cut out all breathing breaks. The result sound very unnatural, as if the speaker interrupts himself all the time. Over all it sounds as a documentary program, to make it "real" (according to the makers).