The article presents the author’s approach to understanding research of a person sustainability. In modern psychology, there is no methodology for numerically assessing human sustainability. The article presents an algorithm for using the scale GSP-Ω. GSP-Ω - the Golden Scale Psychology Sustainability. Options of use of a scale GSP-Ω are analyzed. The applicability of the scale GSP-Ω for different age categories of people, considering their profession and gender, is considered. This scale GSP-Ω has a high validity for use in assessing the sustainability of a person aged 10 years and older, which is an important factor for a psychologist. The simplicity of scale GSP-Ω use in different conditions (field and lab) is empirically proved. The article discusses three research hypotheses and briefly describes modern methods for assessing sustainability. The article assumes that the scale can be used by psychologists for different professions. However, she it is most relevant for professions related to stress.