This research aims to investigate the effect of common environment factors on the amount of saliva secretion by analysis of the data collected from 10 healthy adult male subjects. More specifically, the experiment is designed to compare the effect of combinations of fragrance exposure and footbath under two illumination levels, high and low. The results have shown that there was a significant increase in the amount of saliva secretion after the subject was exposed to pineapple fragrance under the low-level illumination. There was no significant change in saliva secretion found after the footbath.
