DeficitScaleTool is smart companion for better rest, alertness, and performance. Our app helps you understand how sleep, work shifts, and daily stress affect your mind and body. With tools like the Sleep Deficit Estimator and Performance Degradation Estimator, you can see how lack of rest impacts your energy. The Cognitive Load Estimator and Stress Level Impact Calculator show how mental strain influences your focus. We also provide a Recovery Time Optimisation Tool to guide you in regaining balance after fatigue. For shift workers, the Shift Rotation Effectiveness Analyser and Circadian Rhythm Disruption Calculator highlight the effects of irregular schedules. The Alertness Level Predictor and Fatigue Risk Probability Calculator keep you aware of when your body may need a break. Finally, the Accident Risk Calculator helps you stay safer by predicting risks linked to tiredness. Our goal is simple: to give you clear, science-based insights so you can sleep better, work smarter, and live healthier.