The problem with being a writer is recharging your brain. While with other things, you can just go and sit somewhere quiet, as a writer, the second you stop thinking about something the plot bunnies attack and start jumping around your brain. Or all your characters start arguing, demanding attention.
As a writer, the best way to recharge is to make your brain do something different. Read a book, watch a movie, learn ballroom dancing. Do some yoga. Learn to play the piano. Take out a Shakespearean play and recite while acting it out (I told you I'm a Shakespeare nut). Bake some cup cakes!
Keep your brain busy!
Besides your brain, there are other things that need a break sometimes.
Your poor fingers!
I try to get up and go do something, but the chair calls me back like chocolate (ha. You thought I was going to say something else) and I'm typing away again in under a minutes.
So, to fix this: I give myself a manicure. Well, normally it isn't a full manicure, I just trim them (they feel better with shorter nails and the constant typing can make them a bit ragged anyway) and give them one quick coat.
This way I have to wait until they are completely dry or, horror of horrors, I might get nail polish on my keyboard.
(And considering that I tend to paint my nails red, it might look like I typed until my fingers bled. )