International Journal of Research Publication and Reviews, Vol 3, no 12, pp 2617-2621, December 2022 International Journal of Research Publication and Reviews Journal homepage: www.ijrpr.com ISSN 2582-7421 * Corresponding author. E-mail address: tarak.das@nsec.ac.in Study the Changes of Bioelectrical Skin Impedance of Human body Associated with Different Physiological Parameters Tarak Das a , Camellia Mitra b , Hritwika Paul b , Sahil Banerjee b a Assistant Professor, Department of Biomedical Engineering, Netaji Subhash Engineering College , Kolkata,India b Student, Department of Biomedical Engineering, Netaji Subhash Engineering College , Kolkata,India DOI: https://doi.org/10.55248/gengpi.2022.31288 A B S T R A C T Bioelectrical Impedance Plethysmography, in other hand Galvanic Skin Response (GSR) of living system specially for human body is deal with great importance as it changes with different physiological parameters and help to predict the different kind of disease like diabetes mellitus, human mental stress etc. This changing pattern also varies with the human ages and life styles. In this study we have collected the GSR values of two groups of people one is young generation under 20-25 years old and group is middle age under 40-50 years old. The GSR values were collected by using Grove-GSR Sensor with Arduino Uno. The individual’s data was analysed in Mat-lab and the statistical parameters like standard deviation and mean of the extracted datasets was calculated respectively and documented. The statistical parameters from the changing pattern of GSR clearly indicate that this changing is fully associated with the different physiological parameters and different ages which indirectly deal with great significance for pre identification of human diseases. Keywords: Impedance Plethysmography ,GSR, Arduino Uno. Mat-lab, Diseases Prediction I. INTRODUCTION The galvanic skin response (GSR) points to the changes in sweat gland activity which influences our emotional state, subject to different conditions faced with, otherwise known as emotional arousal. Skin conductance is indirectly regulated by the Autonomic Nervous System (ANS).The autonomic activation of sweat glands in the skin influences increased production of sweat and thus higher skin conduction. Our emotional stimulation triggers the sweating of our hands and feet: Whenever we are emotionally induced, the GSR data shows distinctive patterns which are visible conspicuously and also which can be quantified statistically. Our body has about three million sweat glands. The density of sweat glands varies throughout the human body. The highest densities are generally found in the forehead, cheeks, the palms, fingers as well as on the sole of the feet.Whenever we try to trigger up the sweat glands and they get activated, they start to secrete moisture through the pores towards the surface of the skin. By changing the balance of positive and negative ions in the secreted fluid, there is a steady flow of electric current, resulting in measurable changes in skin conductance, and with the increase of skin conductance, skin resistance gradually recedes.This change in skin conductance is known as Galvanic Skin Response (GSR).As GSR holds a very close connection to stress, measure of emotional state, mental state, it has been used in many researches to study different human activities and neurological conditions.For our study, we selected 8 volunteers equally divided on the basis of age. While collecting the data, the recorded room temperature was 25 0 C. The data was recorded through an arduino based GSR sensor, with a constant current source. After processing the data, and analysing it, we found that besides the variation of skin conductance value with age and environmental factors, it also depends upon physiological factors to a great extent.