¡Sé positivo!. Bibliografía fundamental

Barak Y.
The immune system and happiness.
Autoimmun Rev. 2006 Oct;5(8):523-7. Epub 2006 Mar 21..

Hershberger PJ.
Prescribing happiness: positive psychology and family medicine.
Fam Med. 2005 Oct;37(9):630-4..

Post SG.
Altruism, happiness, and health: it's good to be good.
Int J Behav Med. 2005;12(2):66-77..

Ventegodt S, Andersen NJ, Merrick J.
Quality of life philosophy I. Quality of life, happiness, and meaning in life.
ScientificWorldJournal. 2003 Dec 1;3:1164-75.

Cohen M.
Happiness and humour. A medical perspective.
Aust Fam Physician. 2001 Jan;30(1):17-9..

Szymanski LS.
Happiness as a treatment goal.
Am J Ment Retard. 2000 Sep;105(5):352-62.