Part 2/8:
BMR (Basal Metabolic Rate): The calories burned while at rest, simply by existing.
TEF (Thermic Effect of Food): The energy expended during digestion.
NEAT (Non-Exercise Activity Thermogenesis): The calories burned through everyday activities, excluding formal exercise.
Exercise: The calories burned specifically during physical activity.
These components collectively define your total daily energy expenditure (TDEE). To lose weight, you need to create a calorie deficit based on this total consumption, not just one factor.