'Stress' is a word heard all too much in the fast paced, hectic lives that we all lead today. But what exactly is stress? In simple terms, it's just a way for the body to respond to any kind of threat, either real or perceived. Stress hormones like adrenalin and cortisol are released by the nervous system, which prepare the body to either fight or take flight! A moderate amount of stress is actually good, contradictory as that may seem. It keeps you alert at work, focused on winning a game or even motivates you to study when a crucial exam is approaching! However, when a person's physical and mental well-being is threatened by their high stress levels, medication of some sort is required. That's where the stress test equipment market comes into picture. A stress test helps find out if a person has arrhythmia, if breathing problems faced are heart-related, how much they should exercise, or even to see if heart disease treatments are working. It is done by making a person walk on a treadmill to measure the heart rate, breathing, BP and the electrocardiogram.