The Holmes and Rahe stress scale (/reɪ/)[1], also known as the Social Readjustment Rating Scale, is a list of 43 stressful life events that can contribute to illness. The test works via a point accumulation score which then gives an assessment of risk. The American Institute of Stress, for instance, regards a score of 300 or more as an "80% chance of health breakdown within the next 2 years".[2] W