Why muscle beats cardio in your 40s
The shift most fitness advice misses: after 40, holding onto muscle protects sleep, mood, metabolism, and bones more than any cardio program.
These guides are written by Grace, your Menofly AI companion, and fact-checked against published research and clinical sources. This content is for educational purposes and is not a substitute for medical advice.
Why the shift matters
Falling estrogen accelerates natural sarcopenia. Untrained women lose 3–8% of muscle per decade after 40 — and muscle is where you burn glucose, where you make heat, and where you store metabolic resilience.
You do not need a barbell or a gym. You need progressive resistance, 2–3 times a week, taken seriously.
A starter that actually works
- Two sessions per week. 30–40 minutes. Non-negotiable on the calendar.
- Six moves: squat, hinge, push, pull, carry, core. Google each once, then repeat forever.
- Progress the weight (or the reps) every 2 weeks. Log it — your body will forget what it moved last week; the app won't.
- Eat protein within an hour after — see the protein target article.
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