From The National Post's The Quantified Self:
Jon Cousins is a serial entrepreneur who takes quite literally the old adage ‘If you can’t measure it, you can’t manage it.” Diagnosed with bipolar depression in early 2007, he invented a science-based mood scale that ranks his mood between 0% and 100%. He rates himself on 20 different emotions using 20 special double-sided playing cards. He then inputs the score into a website he developed called Moodscope.com, which then graphs his mood over time and, more importantly, emails his daily score to a select group of friends called “buddies.” Buddies then check in with him, sometimes sending a simple “?” when his score is low or lower than the day prior. “The simple and automatic mood notifications mean you don’t have to tell friends how you’re feeling — they already know,” Mr. Cousins said in an interview from London, England. More than 4,300 people and their buddies now use Moodscope.
