Effects on Heart Rate 

   It is hypothesized that exposure to cold water will cause the heart rate to decrease. The control group is expected to have no significant difference before and after exposure to room temperature water. The average change in heart rate decreased slightly (M=2, SD=2.16) throughout the volunteers exposed to the room temperature water while the heart rate, on average, decreased (M= 4.92, SD= 10.34) after exposure to the cold water.