Daily life problems, can lead to distress, which has a harmful effect on health. Individuals are using machines for longer period. Machines should now have the ability to understand and show empathy which relies on trying to help the other through their emotional situation. In this study, showing empathy is done by reducing the effect of negative stress by using blue light. In the experiment, 17 participants executed a computer-mediated stress-generating test while using an Empatica E4 to extract physiological signals. The test is done without and with additional blue-colored light. The results show that a simple addition of blue colored light has the tendency to reduce mental stress. That can be interpreted as, compared to the normal state, the experiment with no light-induced more stress than the experiment with the blue light in the humans. Which imply that the blue light helped in maintaining a lower level of stress.