"You have to get in front of what you're writing. You have to look at it and you have to type a key. If you don't, it's just not going to happen."

Errol Doebler knows a thing or two about discipline. He's been a Naval Surface Warfare officer, Navy SEAL officer, FBI special agent and SWAT operator before founding his leadership consulting firm Ice Cold Leader, which is also the name of his new book.

Why ice-cold? Because ice baths form a key part of his own self-regulation regime, and because managing emotional responses is so foundational to effective leadership. Errol had to develop a conscious process for emotional regulation after a traumatic injury robbed him of that area of his brain; that process turns out to be valuable for anyone facing the stress and emotional discomfort that accompany leadership.

Prepare to be challenged and inspired in roughly equal measure.