Health, Clarity, and Ego measures the amount of damage a character can take. Physical damage reduces Health, Fatigue and stun damage reduces Clarity, Extreme Social interactions can reduce Ego.
Threshold represents the amount of damage a character can take on a specific track before penalties begin to take over. If your Threshold is 8, then for each 8 damage you accumulate, you receive -1 to all Dice rolls.
Health: (Endurance) + (Agility Mod x Strength Mod)
Threshold: 3 + (Endurance Mod x2) + (Strength Mod)
Clarity: (Willpower) + (Insight Mod x Intellect Mod)
Threshold: 3 + (Willpower Mod x2) + (Intellect Mod)
Ego: (Confidence) + (Charm Mod x Presence Mod)
Threshold: 3 + (Confidence Mod x2) + (Presence Mod)