At the outset of the spiritual disciplines class I just completed, our instructor asked us to commit to a bodily discipline for the entirety of the eight-week class. We could choose to practice some form of regular exercise, give up a certain food item, or even practice certain habits of rest — something that would engage our bodies in some specific way for eight weeks.
For my bodily discipline, I chose to conduct an eight-week Pepsi fast. Since Pepsi is the only soda I drink, this basically means that I gave up soda for eight weeks straight.
I chose this fast because it had become increasingly clear in the weeks before starting this class that I had an unhealthy dependence on Pepsi. Every time I went to the grocery store, I would pick up two or three 2-liter bottles of Pepsi, and they would all be gone within 5 days. I would drink Pepsi with meals, and I would drink it with snacks. I would drink it while sitting at my desk working on the computer, which is literally how I spend most of my days. I had become addicted to the taste, as well as to the comfort and familiarity of routine it provided me. So I decided to abstain for eight weeks and see what happened.