Stress tests are evaluations designed to determine how well a system, organization, or individual can handle challenging conditions. For example, in finance, banks undergo stress tests to assess their ability to withstand economic downturns. These tests simulate various adverse scenarios, such as a sudden market crash or a significant loss in assets, to ensure that the bank can remain stable and continue to operate effectively. In healthcare, stress tests are often used to evaluate a person's heart function during physical exertion. Patients may walk on a treadmill while their heart rate and blood pressure are monitored. This helps doctors identify any potential issues, such as coronary artery disease, ensuring that individuals receive appropriate care and treatment.