This interesting post by Dan Catt (@revdancatt) describes how he used Quantified Self ideas to get a handle on his depression:
I’d never been depressed before, or at least not that I could remember. …
Spotting the depression was interesting. Obviously I knew something was up, but when it started it kind of blinded me to itself. I didn’t really have the energy to spot what was going on.
But, because I back-up my data regularly, grabbing content of various social networks either with scripts or services that do it for you, I noticed something. The amount I was tweeting was way down, it had suddenly dropped. Not so much general tweets but conversations with people, @ messages and direct messaging was down, I could see the numbers right in front of me.
The amount of photos I was posting to Flickr had also dropped (cross posted from Instagram I’ll get to in a second).
I could see the interactions with people I was having around the internet had reduced, weeknotes had stopped, emails slowed down, I was leaving my IM client off more, blogged (or at least writing drafts) took even longer than normal.
Dan Hon wrote about the Quantified Self as a way to measure his blood sugar (and more). All these services, hardware and tools we can monitor our body with, glucose levels, weight and so on. What I was seeing was a change in my behaviour, a measurable mental state. And once I’d seen the numbers it made it easier to figure out what was going on.
[Read the whole post: Leaving the Guardian, creativity vs mild depression, the quantified self and running]