Stress Pilot® Pro is a tool for individual stress analysis, utilizing one-minute HRV (Heart Rate Variability) test via an optical analysis method with an ear-clip. The biological parameters are combined with results from different questionnaires that take into account the psychosocial environment of the subject. The individual results are summarized in a personal stress radar, which allows an assessment of the personal stress level at one glance. Stress Pilot® Pro provides a solid basis for stress management and stress prevention in sports and companies. • Respiratory sinus arrhythmia (RSA).• Recoverability (RMSSA).• Sampling rate of 500 Hz.• Resting pulse as fitness indicator.• Psychosocial aspects: stressors, stress type, stress consequences, protective factors.• Correlation with subjective self-assessment.• Individual Stress Radar.• Output as single or group report.• Supplementary biofeedback training based on results possible.