Endurance

Increases stamina (1% per level → +50% at Elite Level)

Reduces jump stamina drain (0.6% per level → -30% at Elite Level)

Increases breath holding (2% per level → +100% at Elite Level)

Reduces breath recovery time (1% per level → -50% at Elite Level)

Elite level: Increases stamina (+20% → +70% total)

Elite level: Increased arm endurance

Elite level: Breathing is independent of energy

Sprinting while not being overweight (i.e yellow or red number)

Walking while not being overweight (i.e yellow or red number)

Completing quick time events (QTE) in the Gym

Completing the quest Swift One

Completing the quest A Life Lesson