The clip has been submitted as evidence of Ryan's lack of self-control, a signal of the Jets' unraveling, or just Rex being Rex.

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David Laibson, an economist at Harvard University, believes that the problem is lack of self-control.

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It was a classic example of a lack of self-control, which had serious consequences for them personally.

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But the notion that sex offenders have a unique lack of self-control has been repeated so frequently that it has come to feel like common sense.

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Workers know logically that they need to save more for retirement, but they struggle to forgo present consumption, owing to lack of self-control, an emotional bias.

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In contrast, entrepreneurs can lose face by insulting someone in public, refusing invitations and gifts or by behaving inappropriately, like losing their temper or crying -- acts that are seen as lack of self-control and weakness.

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Many who have it simply think they are gluttons who lack self-control, says Marsha Hudnall, a registered dietitian and co-owner of the Green Mountain at Fox Run weight loss retreat in Vermont.

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