When psychologists isolate the personal qualities that predict “positive outcomes” in life, they consistently find two traits: intelligence and self-control. So far researchers still haven’t learned how to permanently increase intelligence. But they have discovered, or at least rediscovered, how to improve self-control.
When researchers compared students’ grades with nearly three dozen personality traits, self-control turned out to be the only trait that predicted a college student’s grade-point average better than chance. Self-control also proved to be a better predictor of college grades than the student’s IQ or SAT score.
“Thank heaven, I have given up smoking again!” he announced. “God! I feel fit. Homicidal, but fit. A different man. Irritable, moody, depressed, rude, nervy, perhaps; but the lungs are fine.”
Note: :) i know the feeling
As a general rule, women are less likely than men to suffer from lapses of self-control, but their self-control problems do worsen during the luteal phase, as studies have repeatedly shown.