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How many calories does my body burn at rest? BMR Explained - Day 10
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Day 10: BMR Explained | The Calories You Burn Just Staying Alive
Welcome back to Day 10 of the RAC Summer Recomp Series.
Have you ever wondered where most of the calories you burn each day actually come from? Most women assume it's their workouts, cardio sessions, or step count, but the truth may surprise you.
Your BMR is the number of calories your body burns simply to stay alive. Every heartbeat, breath, hormone produced, cell repaired, and thought you think requires energy. In fact, for most women, 60–70% of total daily calorie burn comes from BMR alone, making it the single biggest contributor to metabolism.
We'll also get into one of the most common fitness myths: "My metabolism is broken." You'll learn why metabolism doesn't suddenly stop working after 35, what research actually says about aging and calorie burn, and why years of chronic dieting can make fat loss feel harder than it should.
In this episode you'll learn:
- What BMR (Basal Metabolic Rate) actually is
- Why BMR accounts for most of the calories you burn each day
- How your body burns calories even when you're resting
- Why muscle mass plays a major role in metabolism
- What actually influences metabolic rate after 35
- The difference between metabolic adaptation and metabolic damage
- How chronic dieting, under-eating, and excessive cardio can slow progress
- Why strength training is one of the most powerful tools for improving body composition
- The truth about "boosting metabolism" and what actually works
If your goal is to lose fat, build muscle, increase metabolism, improve hormonal health, reverse years of chronic dieting, and create a lean, toned physique after 35, understanding BMR is one of the most important concepts you'll ever learn.
Today's 3 Daily Targets
- Hit your protein goal
- Complete your strength training workout
- Take a 20-minute walk
Tomorrow we'll continue Metabolism Week by diving into NEAT (Non-Exercise Activity Thermogenesis) the calorie-burning power of everyday movement and one of the most overlooked factors in fat loss and body recomposition.
Need a workout program designed specifically for body recomposition?
The RAC Recomp CollectiveStrength training for women 35+ who want to build muscle, lose fat, improve metabolism, and finally achieve the toned, athletic look they're after.
Join here:https://www.trainerize.me/profile/racfitnessmn/?planGUID=2e2dba89a93e4acdb840fd9fa8e25d40
Let's connect on Instagram:@racfitness_
Need custom macros?For a personalized RAC Macro Formulation including calories, protein, carbs, fats, BMR, TDEE, carb tolerance analysis, and macro type recommendations, email: