Stew Smith - http://www.stewsmithfitness.com and Pat Bonis discuss the part of the brain that deals with processing stimuli that comes in from all areas. Think instructor feedback, cold, sandy, wet, miserable pain feedback, and performance feedback that is not to standard - all are forms of stress on the mind and body and how you handle matters to your success. Pick up a few tips. Things to consider:

Power of the Mind - https://www.military.com/military-fitness/navy-special-operations/mentally-tough-power-of-mind-in-spec-ops-training

Mind and Body Connection - https://www.military.com/military-fitness/health/the-mind-and-body-connection

Name it and Tame It - https://www.military.com/military-fitness/general-fitness/plateaus-slumps-and-dealing-with-stress-and-anxiety

Check out other videos of combat swimmer stroke, workouts, and other spec ops related training. See http://www.stewsmith.com for more information about military, law enforcement, special ops, fire fighting training programs.