Related by context. Frequent words. (Click for all words.) 56 Lyubomirsky 56 Waldfogel 55 Kahneman 54 Ed Diener 54 evolutionary psychologist 54 studys 53 Wissner Gross 53 bmj.com today 53 Frans de Waal 52 Emmanuel Saez 52 journal Thorax 51 Economic Modelling 51 Joseph Rowntree Foundation 51 Simon Baron Cohen 51 Zagorsky 51 Lydia Saad 51 Ipsos MORI 51 Haidt 50 bmj.com 50 Easterlin 50 Dan Ariely 50 Ipsos Mori 50 Ruhm 50 Developmental Psychology 50 Alan Smithers 50 Furedi 49 Neumark 49 MacDorman 49 cebr 49 Abbey Mortgages 49 cognitive neuroscientist 49 journal Psychosomatic Medicine 49 Roger Highfield 48 Ordovas 48 Legatum Institute 48 Ariely 48 Psychologist Dr 48 Holt Lunstad 48 contagious yawning 48 Roehampton University 48 happiness 48 ippr 48 journal Personality 47 Hertz Picciotto 47 Drewnowski 47 Birkbeck College 47 Experimental Psychology 47 Carsey Institute 47 autistic traits 47 hedonic 47 Berrill 47 Daniel Kahneman 47 Durkheim 47 Forgas 47 Pillemer 47 OnePoll 47 Kiecolt Glaser 47 Bob Birrell 47 journal Psychological Science 47 BMRB 47 developmental psychology 46 Nicholas Christakis 46 Luigi Zingales 46 think tank Civitas 46 Sudhir Venkatesh 46 evolutionary psychologists 46 Eichengreen 46 Peter Francese 46 journal PLoS Biology 46 Catherine Rampell 46 Biology Letters 46 Trichopoulos 46 Frank Furedi 46 Bert Sperling 46 Tim Colebatch 46 sociologist 46 Justin Wolfers 46 AIHW 46 Hanushek 45 journal Biological Psychiatry 45 Values Survey 45 study 45 Canstar Cannex 45 correlational 45 journal Epidemiology 45 Heather Turgeon 45 Empirical evidence 45 researcher 45 dyscalculia 45 tank Demos 45 Thomas Insel 45 Molecular Psychiatry 45 MORI 45 George Borjas 45 Abraham Maslow 45 Social Attitudes 45 Tinetti 45 Tetlock 45 Grucza 45 moneyfacts.co.uk 45 Hibbeln