I don't get in a bad mood very often, but every so often one will sneak up on me. The other day, I had a ton of work to catch up on, which caused me to blow off the gym for the second day in a row. In the evening, I got stood up by a friend who was meeting me for a drink. While I waited for her at the bar, I ordered a beer that I didn't really want. After I'd taken about three sips, I decided to text my trainer to ask how many calories are in a pint glass of beer. The answer was worse than I'd even imagined: about 400 calories! After calculating the amount of exercise I'd need to do to burn off the entire glass, I decided not to drink the rest of it.
During my walk home, I brooded more about my day and thought about how close I'd come to making it even worse with those empty calories. I decided then and there that I needed to shake off my funk and not allow negativity to take over. I put a 10-minute time limit on wallowing and then moved on to a more uplifting topic. It's true that you can change your attitude if you want to. Just making that decision to occupy my mind with something productive improved my spirits.