Last night on some TV show on in the background, they were talking about things you can do to maintain health in old age, and among the offerings was to keep your mind stimulated mentally. They said it was important to be doing mentally active things like socialising that use the frontal lobes of the brain, rather than mentally passive things like reading a newspaper, that just uses the back portion of the brain.

In dredging up the effort to post on a blog I follow (Caroline Middlebrook) I realised that not only does it feel good to actively participate (rather than just trolling Shashdot articles, reading news articles, etc), but I'm left with an upbeat, doing things feeling that helps me to be productive in the other things I have to do today (work things - but when you work for yourself that's not too bad).