Sorry, but the link to those 3 neurotransmitters is ridiculous. They each do so much more than just the simplistic things you mention. For example: Dopamine is also responsible for the psychotic episodes of a schizophrenic. Noradrenaline is great for panicking, and acetylcholine is involved in so many processes (including influencing the consistency of your faeces) that to pick out one effect is absurd. I get that Americans want to condense everything down into 2 second grabs, but (mis)using neurochemistry to make the point is silly, and in this case, unnecessary as you provide some useful tips.