I knew a corporate communications writer that used to dream about being a cashier at McDonalds. The never ending pressure to meet deadlines was getting to her. The big plus in some jobs is that you can drop them as soon as you are off work. Other jobs you carry all day long until you solve them. A continuous supply of work means that you're working all the time.

I'm a true believer that a daily hobby you love gives you the opportunity to decompress. That's my first suggestion to anyone in danger of burning out.