Derren Brown - Trick of the mind - Are you feeling sleepy?

Derren Brown - Trick of the mind - Are you feeling sleepy?:

"If we feel that our brains are being overloaded with information, we panic and start to become confused. In this situation, if we're given a simple instruction, we grasp it like a lifeline. This technique is used in tricks to persuade people to behave in ways that are completely out of character. When commands are issued at the end of a stream of confusing instructions, people are so relieved they can finally understand what's being said that they will do whatever they're told.

...Public speakers often capitalise on the same response. Have you ever listened to a politician giving rapid-fire statistics so fast that the audience can't possibly take them in, only to end the speech with a simple, memorable phrase? The soundbite comes as such a relief after all those facts and figures that this is all the listeners remember."