This study can help to uncover smaller stress factors that affect teens. Studying the effect of hearing gum chewing on student test scores and cortisol levels, a stress hormone, pertains to this topic. Cortisol levels show if hearing hum chewing causes stress. Comparing cortisol to scores informs if there is a correlation between the two variables. It is hypothesized that hearing gum chewing will significantly increase the stress levels of the students.