Hopefully you are aware of the information I've already shared with regards to Nasal breathing. In light of the current Covid Virus pandemic, is it possible that nasal breathing offers a powerful, but not comprehensive line of defence against airborne disease, especially those that target the respiratory system. I believe so. As does an expert in the field, Patrick McKeown. This link to a free webinar he's offering on the subject: https://buteykoclinic.com/corona-virus We'll use this forum thread to follow up discuss this information, the methods and how you can make the most of this info