

Boredom is a modern phenomenon experienced in earlier civilizations only by the privileged classes enabled by man's very success in inventing labor-saving devices.

Boredom is a psychic sickness. A patient who sustains the analyst's interest, no matter how grave the conflict, can still be helped in analysis. One who is boring to the analyst needs psychiatric treatment.
Boredom is a mood associated with the aesthetic stage of self-actualisation: When we are deeply bored, we are likely to see the meaningless of our everyday pleasures and to question our values.
Boredom is a high-arousal state. Your heart rate actually rises.
Boredom is (as not knowing what to do with oneself and one's life) the worst form of mental suffering.

Boredom is a point along the temporal trajectory of that which is interesting. While many people think they are doing great honor to something by finding it interesting they have in fact already relegated the thing to the ranks of what is soon-boring.
Boredom increases creativity.
Which animal is the least interesting?A boar

Boredom changes the brain.
Boredom is a developmental achievement insofar as it is an irritable state and a recurrent sense of emptiness out of which one's real desire can crystallize.
Boredom is a fearsome prospect as there's a limit to the number of cars and microwaves you can buy.