: A rhythmic breathing technique (inhale for 4, hold for 4, exhale for 4, hold for 4) used to physically calm the nervous system.
To prepare for the final challenge, Chris undergoes high-pressure simulations designed to spike his stress levels: [S1E1] Stress-Proof
: Dr. Modupe Akinola, a psychologist and professor at Columbia Business School , leads Chris through the training. : A rhythmic breathing technique (inhale for 4,