Cheerfulness predicted a shorter life, perhaps because it indicated an unrealistic optimism, which led people to ignore risks to their health.

He said he heard just what he heard last month from groups in Los Angeles: unrealistic optimism.

That is probably unrealistic optimism, but how could one then resist staying, at least through the initial phase of discovery.

They have the same unrealistic optimism, but to a lesser degree, for others who are closely linked, such as romantic partners and close personal friends.

In other words, in the absence of a neural mechanism that generates unrealistic optimism, it is possible all humans would be mildly depressed.

Yet for sellers about to list their homes, the numbers in the October report argue against unrealistic optimism in pricing.

At times of economic stagnation of growth or when consumption levels fall, there is no sense in talking people into unrealistic optimism.

It has been said that liberalism is confounded by an unrealistic optimism about the possibilities of human advancement.

There are three broad kinds: inflated assessment of one's own abilities, unrealistic optimism about the future and an illusion of control.

"When predictions fail: The dilemma of unrealistic optimism."