Build aerobic fitness with repeatable, conversational-pace work. Consistency matters more than finding a perfect ‘Zone 2’.
Cost and effort, honestly
What the evidence supports
Regular moderate aerobic activity improves cardiorespiratory fitness and is associated with lower cardiovascular, metabolic and all-cause health risk.
Most relevant when
Your aerobic fitness or weekly movement is low, or most of your activity is brief and high-intensity.
Keep in perspective
‘Zone 2’ is a practical way to regulate intensity, not a uniquely proven biological threshold. A pace you can sustain and repeat is more important than a perfect wearable calculation.
Safety
Build gradually. New chest pain, faintness or disproportionate breathlessness warrants medical review.
Sources
Your payoff
See whether this belongs in your plan, what it could realistically change, and where it ranks against your other options.
- Personal relevance
- Signals it may improve
- Priority versus your alternatives
- Recommended starting point
- How we would track response
Requires your health history, labs and available wearable data.
Educational information, not a diagnosis or prescription. Medication decisions require consultation with a qualified clinician.