1 Diener noted that while current health edicts focus on obesity, smoking, eating habits and exercise, "it may be time to add 'be happy and avoid chronic anger and depression' to the list."

2 While Diener said a few studies he reviewed found the opposite, the "overwhelming majority ... support the conclusion that happiness is associated with health and longevity."

3 Diener and Litman have worked on a new model by trying to negotiate a great rate and letting consumers know the hotel's name.

4 Pioneers of booking hotels via a computer, Diener and Litman are trying to re-book the way hotel bookings are made over the phone.

5 "Hotels don't want their rates published, " Diener said. "Occupancy is weak across the board, but hotels don't want to lower their price across all distribution channels.

6 Diener, a senior scientist for the Gallup Organization, helped design the survey.

7 'Money is an object that many or most people desire, and pursue during the majority of their waking hours,' wrote study researcher Ed Diener of the University of Illinois and the Gallup Organization.

8 An excellent example of this return is the new psychological science of happiness, represented, for example, by the fundamental work of Edward Diener.

9 In cultures all over the world the fulfillment of his proposed needs correlates with happiness, " Diener said.

10 "Some of the nation rankings are indeed surprising, at least if we assumed that money was the only type of wealth, " Diener said.

11 "Another revision of his theory is that we found that different needs produce different types of well-being, " Diener said.

12 "Everybody has been looking at just life satisfaction and income, " said study researcher Ed Diener of the University of Illinois and the Gallup Organization.

13 But the order in which "higher" and "lower" needs are met has little bearing on how much they contribute to life satisfaction and enjoyment, Diener said.

14 When they think of the future, they are optimistic, and when they review the past, they tend to savor the high points," say Diener and Biswas-Diener.

15 "I was almost shocked, and certainly surprised, to see the consistency of the data," said Ed Diener, the University of Illinois psychology professor emeritus, who lead the review.

16 "People quickly realize that green buildings translate into a lot of benefits for them, " Diener said.

17 Happier people tend to have good families, friends and supportive relationships , say Diener and Biswas - Diener.

18 The second way is to register with the site, then call the company's call centre, and get an "unpublished rate", which is 10-50 percent lower than other Internet rates, Diener said.