Hi Rose,
Nope, that's pretty much it. Apparently, stabilizing your routine (going to bed and getting up at the same time every day and night, eating plenty of fruits and veg, eating at regular intervals, exercising regularly, etc.) does wonders for your biological rhythms, and thus helps your brain chemistry tremendously. I think we in the Western world so often forget to take care of ourselves because of the daily grind, but we're all human, and we need to treat our bodies like the beautiful and intricate vessels they are.
Hope this helps, and don't forget to take care of yourself! 
-J
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"One by one, as they march, our comrades vanish from our sight, seized by the silent orders of omnipotent death. Very brief is the time in which we can help them, in which their happiness or misery is decided. Be it ours to shed sunshine on their path, to lighten their sorrows by the balm of sympathy, to give them the pure joy of a never-tiring affection, to stregthen failing courage, to instill faith in hours of despair."
-Bertrand Russell
With love and hope,
<~/J\~>
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