Check out one of your colleague's (Rotork) journey to a healthier lifestyle. Petra has been slowly making wellness changes since I've known her. Over the past year, she's improved her health without turning her life upside down. This blog chronicles her challenge to emphasize eating local foods for the month of August. (start reading at the bottom of the page and work upwards)
I'm impressed. Not just because she can eat all local foods, but because she's trying something new on her quest to continually improve her wellness.
What challenge can you try? It doesn't have to be as "big" as Local August (remember, Petra worked up to this over a year), it should just be something that makes you think and feel positively about food, lifestyle, and your health and well-being.