Judging the personality book by its cover

So I just read this interesting article from webmd about people’s appearance and their personality. The University of Texas did a study with over a 100 students where some were the judges and others the photographed. The photographed individual (as well as people close to them) filled out surveys about their personalities. Pictures were taken of the students in two poses. The first was in a natural or spontaneous manner, the other was a non-emotional manner (blank stare, arms down by the side, etc.). The judges then evaluated the pictures and were asked to write down what they thought the personality traits were of the individual in the picture. Surprisingly the judges nailed it on the head. In shots where an extroverted person was in a blank stare the judge identified them as being outgoing while timid individuals in a candid shot were identified as being shy.

I thought this was interesting because on the days that I do P90X (or workout in general) I have more energy, feel better about myself, roll my shoulders back and hold my head higher. My confidence levels are much higher on these days. People have commented about my attitude and appearance on the days that I’ve worked out more then the days I have not, even if on those days where I did work out I haven’t showered or I’m still in yesterdays clothes. Is it possible that working out is changing my personality for the day and thus shining through my normal appearance? Are you somebody who works out on a daily basis and believes your personality is a result of doing so? Let me know what you think.