Face Masks Have Been Proven To Cause Breathing Fatigue

https://spectrumlocalnews.com/nc/triangle-sandhills/news/2020/06/02/-mask-fatigue--is-the-new-obstacle-facing-americans

https://www.biospace.com/article/releases/scientists-at-pn-medical-recommend-breathing-techniques-for-wearing-face-masks-to-combat-side-effects-including-anxiety-headaches-and-fatigue/

https://komonews.com/news/coronavirus/exhaustion-with-earing-masks-social-distancing-doctors-say-covid-fatigue-is-real

https://www.hopkinsmedicine.org/health/conditions-and-diseases/coronavirus/how-to-deal-with-coronavirus-burnout-and-pandemic-fatigue

https://nation.africa/kenya/healthy-nation/feeling-suffocated-by-mask--1244212

https://www.newsday.com/news/health/coronavirus/mask-fatigue-1.45333263

https://www.eatthis.com/face-masks-side-effects/

https://www.childrensmn.org/2020/07/15/breathing-tips-while-wearing-mask/#:~:text=Have%20you%20noticed%20feeling%20more,lot%20of%20energy%20to%20breathe.

https://www.spectator.co.uk/article/are-masks-bad-for-you-