Brain
Locus coeruleus shocks brain into hyperactivity. Stress hormones flood the system.
Lungs
Norepinephrine speeds up respiration.
Heart
Adrenaline turns up heart rate, increases blood pressure.
Guts
Cortisol shuts down digestion (and suppresses immune response).
Liver
Provides extra sugar to fuel brain and muscles.
Belly
Fat cells open up to receive fat—storable energy.
Feet
Now you’re ready to flee or fight.
