EARLY ACCESS
METABOLIC_OPTIMIZATION

ZONE 2
TARGET
ESTIMATOR

Zone 2 training is the cornerstone of longevity-focused exercise. Find your optimal heart rate range for maximum fat oxidation and mitochondrial biogenesis.

// YOUR METRICS

Measure first thing in the morning, lying down

// YOUR ZONE 2 TARGET

ZONE 2 HEART RATE RANGE

111 - 130

BPM

MAX HEART RATE

185 BPM

HEART RATE RESERVE

125 BPM

THE TALK TEST

In Zone 2, you should be able to hold a conversation but prefer not to. If you can't speak in full sentences, you're going too hard.

Can talk Slightly breathless Can't talk = too hard

WEEKLY ZONE 2 RECOMMENDATION

150-180 min

Aim for 3-4 sessions of 45-60 minutes each. Consistency is more important than duration.

// ZONE_2_SCIENCE

WHY ZONE 2 MATTERS

Zone 2 training has become the focus of longevity researchers and elite endurance coaches alike. At this specific intensity, your body undergoes unique metabolic adaptations that improve health span and athletic performance.

BENEFITS OF ZONE 2 TRAINING

  • 1
    Mitochondrial Biogenesis: Creates new mitochondria, improving cellular energy production and metabolic health.
  • 2
    Fat Oxidation: Maximizes your body's ability to burn fat for fuel, improving metabolic flexibility.
  • 3
    Lactate Clearance: Trains Type I muscle fibers to clear lactate, improving endurance capacity.
  • 4
    Cardiovascular Health: Improves stroke volume and capillary density without excessive stress.

HOW TO STAY IN ZONE 2

  • Use a heart rate monitor: Essential for accurate zone training
  • Start slower than you think: Most people train too hard
  • Nose breathing: If you must mouth-breathe, slow down
  • Be patient: It takes time to build an aerobic base

ZONE 2 ACTIVITIES

Any steady-state cardio works: cycling, running, swimming, rowing, elliptical, or brisk walking. Choose activities you enjoy and can sustain for 45-60 minutes.

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Disclaimer: These are estimates based on established formulas. For precise Zone 2 determination, consider a metabolic test measuring lactate or respiratory exchange ratio. Consult a healthcare provider before starting any new exercise program.