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Health Dashboard

Understanding Your Health Scores

Learn what each health score (Readiness, Daily Energy, Fitness Age, Stress & Recovery) represents and how they are calculated.

Sunu analyzes your connected health data to calculate several unique, personalized scores. These scores are designed to give you a simpler, more holistic understanding of your body's status.

You will find these scores on the Home tab. Tapping on any score will take you to a detailed view explaining the factors that contributed to it.

Readiness Score

What it measures: How prepared your body is for physical activity today.

Factors Considered

  • Sleep quality and duration
  • Recent activity load
  • Recovery metrics like Heart Rate Variability (HRV)
  • Resting heart rate trends
  • Time since last intense workout

How to Interpret

85-100: Excellent readiness — Your body is well-recovered and ready for intense activity

70-84: Good condition — Suitable for moderate exercise and normal activities

50-69: Lower readiness — Your body needs lighter activity today

Below 50: Focus on rest — Prioritize recovery and avoid intense exercise

What Affects It

  • A good night's sleep significantly boosts readiness
  • High stress or poor sleep lowers it
  • Overtraining without recovery decreases it
  • Consistent sleep schedule improves it over time

Daily Energy (Body Battery)

What it measures: Your predicted energy levels throughout the day based on circadian rhythm and recent patterns.

Factors Considered

  • Sleep-wake cycle consistency
  • Time of day
  • Recent activity patterns
  • Historical energy patterns
  • Meal timing and nutrition

How to Interpret

80-100: Peak energy hours — Ideal for important tasks and workouts

60-79: Good energy — Suitable for most activities

40-59: Lower energy — Take it easy or have a healthy snack

Below 40: Energy dip — Rest or do light tasks

Understanding the Pattern

Your Daily Energy score updates throughout the day:

  • Recharges during quality sleep
  • Depletes with activity and stress
  • Fluctuates based on your circadian rhythm

Fitness Age

What it measures: Your cardiovascular fitness level compared to others, expressed as an age.

Factors Considered

  • Resting heart rate
  • VO₂ Max (if available from Apple Watch)
  • Exercise frequency and intensity
  • Heart rate recovery after exercise
  • Age and gender for population comparison

How to Interpret

Younger than your actual age: Excellent cardiovascular health — Your heart and lungs function like someone younger

Same as your actual age: Average fitness for your age group

Older than your actual age: Room for improvement — Your cardiovascular system needs more conditioning

Example

A 40-year-old with a Fitness Age of 32 has the cardiovascular health of an average 32-year-old.

How to Improve It

  • Regular aerobic exercise (walking, running, cycling)
  • Consistent workout routine (3-5 times per week)
  • Adequate recovery between sessions
  • Good sleep quality

Stress & Recovery Score

What it measures: Your nervous system balance and how well you're managing stress.

Factors Considered

  • Heart Rate Variability (HRV)
  • Resting heart rate trends
  • Sleep quality
  • Activity balance (not too much, not too little)
  • Recent stressors detected from patterns

How to Interpret

80-100: Well-balanced nervous system — Excellent stress management

60-79: Moderate stress levels — Mostly recovered

40-59: Elevated stress — Prioritize relaxation techniques

Below 40: High stress or poor recovery — Immediate rest needed

How to Improve It

  • Practice mindfulness or meditation
  • Ensure adequate sleep (7-9 hours)
  • Balance intense exercise with rest days
  • Manage work and life stressors
  • Try breath work or yoga

When Scores Show "Calculating..."

If a score shows "Calculating..." or "No Data," it means:

  1. Not enough data collected yet — Needs 3-7 days of consistent tracking
  2. Required permissions aren't granted — Check Apple Health connection
  3. Your device doesn't track necessary metrics — Some scores require Apple Watch

To Fix This

  • Ensure Apple Health is connected with full permissions
  • Wear your Apple Watch consistently (if you have one)
  • Wait 3-7 days for scores to establish baseline
  • Keep the app updated

Data Sources & Update Frequency

Update Schedule

  • Readiness: Updates each morning after sleep data syncs
  • Daily Energy: Updates throughout the day (every 2-4 hours)
  • Fitness Age: Recalculates weekly or after significant fitness events
  • Stress & Recovery: Updates multiple times daily based on HRV and activity

Score History

Tap any score card to view:

  • 7-day trend graph
  • Detailed breakdown of contributing factors
  • Historical patterns
  • AI insights about changes

💡 Ask Your AI About Scores

Tap any score to ask questions like:

  • "Why is my readiness low today?"
  • "How can I improve my fitness age?"
  • "What's affecting my stress score?"
  • "Compare my scores this week to last week"