Risks and limits of Stress Test

A stress test (e.g., salivary cortisol or heart rate variability) from a home kit can offer clues about your stress levels, but its reliability is limited. Such tests often capture only a single point or short period, whereas stress is chronic and fluctuating. Results are not diagnostic—elevated cortisol may stem from poor sleep or acute strain. Many home tests lack validated reference ranges. The risk lies in misinterpretation: a 'normal' result may falsely reassure despite ongoing symptoms, while an abnormal one can cause unnecessary worry. Without clinical context and repeated measurements (e.g., diurnal profile), the data is of limited use. For genuine stress-related health concerns, consult a physician.