Manjinder Kaur MBBS MD (Physiology) MAMS CMCL-FAIMER ACMEAdditional Principal, Professor and Head, Department of Physiology, Geetanjali Medical College and Hospital, Udaipur, Rajasthan, IndiaSangeeta Nagpal MBBS MD (Physiology)Professor, Department of Physiology, Maharishi Markandeshwar College of Medical Sciences and Research, Sadopur, Ambala, Haryana, India