iPhone app reveals that sex makes us happiest - CNET
 The Week Magazine | iPhone app reveals that sex makes us happiest CNET Of the 2200 people who filed 250000 mood status updates through the iPhone app called Track Your Happiness, those who were at ... Mind Wandering vs. Focused Concentration iPhone Users Are Sad, Mentally Unfocused iPhone Web App Proves Wandering Mind 'Makes' You Sad |