To lose, gain, or maintain weight, you must understand your body's thermodynamic baselines. Calories are simple units of energy, and your body burns them differently depending on activity levels.
What is Basal Metabolic Rate (BMR)?
BMR is the absolute minimum amount of energy your body requires to keep vital organs functioning at complete rest. This covers processes like breathing, cellular repair, heartbeat, and brain activity.
What is Total Daily Energy Expenditure (TDEE)?
TDEE is the total cumulative calorie count you burn in 24 hours. It combines your BMR with activity level multipliers (sedentary, light active, moderate active, or heavy active). Simulating calorie deficits relative to your active TDEE is crucial for sustainable health.