Do this for 30 days, see what happens. - breathing exercise by Wim "The Iceman" Hof

Guided Wim Hof Method Breathing

[There is a reason why this has over 11 millions views just in the last 9 months or so.]

Be sure to watch the safety video first.

 
This Breathing Bubble is an audiovisual guide that helps you maintain rhythm and pace during your breathing sessions. Simply watch the bubble as it expands and contracts, and follow with your breath. You'll hear Wim breathe alongside you, and entrancing background sounds help tune out your surroundings, allowing you to focus on nothing but your breath.