The 4 hour body could be considered a ‘hacking guide to the human body’, focusing on minimum effort for maximum effect. It’s one of the most promising books I’ve read in many years, and if you only read one book this year, it should be the 4 hour body. (Actually, if you only read one book this year, you should read more.) I have a review and overview at http://fellrnr.com/wiki/Book_Review_-_The_4_Hour_Body
The 4 hour body has prompted me to make a number of New Year Resolutions (http://fellrnr.com/wiki/2010_New_Years_Resolutions). There is evidence that making New Year Resolutions is effective in making changes - http://io9.com/5722158/new-years-resolutions-might-not-be-a-waste-of-time-after-all though I believe that a public declaration of intention is a powerful form of motivation at any time of the year.