Recently, I've come across something which I suppose is inevitable for people who use computers as much as I do. Wrist and arm pains. Now, I don't know if this is from using a computer too much, something I've been doing for years; though I feel it has a lot more to do with using a laptop, and in particular, using it on a kitchen table. Which is just too high, very un-ergonomical. Knowing a few lecturers and post-grads how have been afflicted with dreaded carpel tunnel has spurred me into looking at ways to fix this.
Of course the obvious solution would be to stop using the computer so much. Which is certainly something I should consider, though for the moment not really an option. Instead I've been checking out ergonomic keyboards and mice. A standard keyboard and mouse tends to keep the hand and forearm facing the desk. As it turns out, holding your arm like this and scissoring your fingers on a keyboard is quite unhealthy. So ergonomic keyboards and mice attempt to remedy this by forcing the hands into something more resembling a hand shake posture.
On the subject of looking after oneself, I've also been investigating the Hundred Push Up course. But more on that another time.