On blogging and happiness

I read this recent article on 'how to triple your happiness' by Neil Pasricha. He says that journaling 20 minutes a day about one positive experience increases your happiness. Re-reading it further increases your happiness. This process works because it makes us feel better about ourselves.

I'm thinking this theory must also apply to regular blogging. For some reason I usually never go back to re-reading my posts, do you?