Zone 2: The Cardio That Balances, Not Burns Out

Not all cardio is created equal—and for women, “more” or “harder” isn’t always better. Zone 2 training is the sweet spot: low enough intensity to protect your hormones, high enough to improve endurance and fat-burning efficiency.

You’ll know you’re in Zone 2 when you can breathe through your nose or hold a full conversation while moving. Think brisk walking, easy cycling, or light jogging—not gasping sprints.

Why Zone 2 is a Hormone Hero

• Reduces cortisol load: Keeps your stress hormones from spiking chronically.

• Improves mitochondrial health: More energy at the cellular level.

• Supports fat metabolism: Especially during the luteal phase when your body naturally uses more fat for fuel.

• Enhances endurance: Builds your aerobic base so high-intensity sessions feel easier.

How to Work It In

• Frequency: 2–3 times per week

• Duration: 30–60 minutes

• Effort Check: Talk test—if you can’t chat, you’re going too hard

Quick Tip:

Next time you have a rest day or light training day, swap in a 45-minute walk at a pace where you could recite your to-do list without getting winded. That’s Zone 2—and your hormones will thank you.

Got questions, want to learn more about something? Hit reply and let me know!

To strength, science, and success,
Keri Walter
Founder, Built for Her

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