When it comes to pulling muscles pulling the ones under your chin from yawning wrong has to be amongst the more painful. I did that a few minutes ago. Ouchy.
Next time you have some junk food take a look at the weight of the fat in it. I had a bag of potato chips on Wednesday, and of the 60 grams total weigh of the package 15 grams were of fat. In other words the actual weight of the potatoes themselves is only 45 grams. Check out your favourite soft drink and you're likely to be equally disturbed by the weight of the sugar in it. Hmmm, perhaps its time to consider another "I'm gonna cut back almost completely on the junk food" New Year's resolution folks.