QUESTION SIX (4 MARKS): Students during exams experience anxiety and stress, and thus the body releases the hormone "cortisol" into your bloodstream. Cortisol causes an increase in your heart rate, blood pressure, and sweat, which is your natural "flight-or-fight" response that has kept humans alive for thousands of years. However, long-term effects of repeated activation of the stress response in different situations lead to a chronic stress that negatively impacts your physical and psychological health, leading to high blood pressure, diabetes, and brain stroke, or maybe death. If you happen to work as a Product Development Engineer with a biomedical devices manufacturer who wants to design a wearable device that can measure cortisol level in the blood and use this data to generate brain stimulation to instantly eliminate the stress and make you feel relaxed and happy. (A) Draw a block diagram for this device with all the necessary components needed to continuously monitor the cortisol and respond instantly with the stimulus. (2 MARKS) (B) Briefly describe its working principles (2 MARKS) QUESTION SIX (4 MARKS): Students during exams experience anxiety and stress, and thus the body releases the hormone "cortisol" into your bloodstream. Cortisol causes an increase in your heart rate, blood pressure, and sweat, which is your natural "flight-or-fight" response that has kept humans alive for thousands of years. However, long-term effects of repeated activation of the stress response in different situations lead to a chronic stress that negatively impacts your physical and psychological health, leading to high blood pressure, diabetes, and brain stroke, or maybe death. If you happen to work as a Product Development Engineer with a biomedical devices manufacturer who wants to design a wearable device that can measure cortisol level in the blood and use this data to generate brain stimulation to instantly eliminate the stress and make you feel relaxed and happy. (A) Draw a block diagram for this device with all the necessary components needed to continuously monitor the cortisol and respond instantly with the stimulus. (2 MARKS) (B) Briefly describe its working principles (2 MARKS)