Vitality Capacity

Vitality Capacity is your body’s overall physiological resilience; the reserve that keeps you going. Defined by the World Health Organization (WHO), as a physiological state resulting from the interaction of multiple systems, reflected in the level of energy and metabolism, neuromuscular function, and immune and stress response functions of the body.^1,2

In simpler terms, it combines your energy and metabolism, muscular strength and endurance, and your ability to handle stress or illness. ^1,2 Vitality capacity underlies all other domains of intrinsic capacity; the WHO framework for healthy aging, including locomotor, cognitive, psychological, and sensory capacities.¹

Vitality Capacity is composed of three interconnected domains that together form the foundation of your physiological resilience:^1-3

1. Energy & Metabolism: reflects how efficiently your body produces and uses energy.¹

2. Neuromuscular Function: represents your muscular strength and endurance.^2,3

3. Immune & Stress Response: indicates how well your body adapts to challenges like inflammation or illness.^4,5

These domains, first defined by WHO, have been validated and form the foundation of your physiological resilience.¹

Essentially, your vitality capacity is your “reserve tank”; the physiological backup that supports health and independence as you age.^1-3

CPV Score Interpretation: Vitality Capacity Levels

Normal (Green): Indicates healthy vitality. Strong energy, endurance, and resilience for daily life. Supports healthy aging and low fatigue.

At Risk (Yellow): Below-average vitality. Early signs of fatigue or reduced reserves. Focus on fitness and healthy habits to prevent decline.

Very Low (Red): Low vitality capacity. May include muscle weakness, fatigue, or slow recovery. Linked to higher illness and hospitalization risk. Immediate lifestyle or medical interventions are recommended.

Eforto® interpretation informed by clinical studies on fatigue and inflammation.^1-5

Maintaining strong Vitality Capacity is vital for healthy longevity. A low vitality score doesn’t just mean fatigue. It indicates a real loss of the body’s physiological reserve.^1,2

Studies show that declining vitality often precedes frailty, meaning early muscle weakness and exhaustion can appear years before disability.^2,3 Low vitality is also linked with chronic inflammation, higher levels of C-reactive protein (CRP) and IL-6, and increased vulnerability to illness and hospitalization.^4,5,7

Conversely, individuals with higher vitality have stronger immune responses, lower inflammation, and better recovery from illness. Tracking this capacity allows early detection and prevention of age-related decline, helping you stay independent and resilient.^5-7

The good news: Vitality Capacity is modifiable; you can improve it through consistent healthy habits.

Here’s how:^8-14

• Strength Training: Weightlifting and resistance exercises build muscle and boost neuromuscular function.

• Aerobic Activity: Brisk walking, cycling, or swimming improves endurance and energy metabolism.

• Anti-inflammatory Diet: Eat plenty of fruits, vegetables, whole grains, and omega-3 to reduce inflammation and improve energy.

• Quality Sleep: 7–9 hours of deep sleep enhances recovery and immune function.

• Stress Management: Mindfulness, yoga, and social engagement help maintain a healthy stress response.

Research shows regular exercise can slow or reverse age-related decline in muscle and energy metabolism; meaning it’s never too late to strengthen your vitality.^2,3

While tracking your vitality on your own is beneficial, some situations require medical evaluation. You should consult your doctor if:

• Your Eforto scores remain very low or drop sharply.

• You experience unintentional weight loss, persistent exhaustion, or reduced ability to perform daily activities.

These symptoms may point to underlying conditions such as malnutrition, anemia, hormonal imbalance, or early frailty. Sharing your Eforto results with your healthcare provider helps them assess your grip strength, fatigue, and endurance objectively.^4-7