![Scientists at PN Medical recommend breathing techniques for wearing face masks to combat side effects including anxiety, headaches, and fatigue | BioSpace Scientists at PN Medical recommend breathing techniques for wearing face masks to combat side effects including anxiety, headaches, and fatigue | BioSpace](https://mma.prnewswire.com/media/1179344/PN_Medical_Combating_Effects_of_Mask_Wearing.jpg)
Scientists at PN Medical recommend breathing techniques for wearing face masks to combat side effects including anxiety, headaches, and fatigue | BioSpace
![IJERPH | Free Full-Text | Is a Mask That Covers the Mouth and Nose Free from Undesirable Side Effects in Everyday Use and Free of Potential Hazards? IJERPH | Free Full-Text | Is a Mask That Covers the Mouth and Nose Free from Undesirable Side Effects in Everyday Use and Free of Potential Hazards?](https://pub.mdpi-res.com/ijerph/ijerph-18-04344/article_deploy/html/images/ijerph-18-04344-g005.png?1618903857)
IJERPH | Free Full-Text | Is a Mask That Covers the Mouth and Nose Free from Undesirable Side Effects in Everyday Use and Free of Potential Hazards?
![تويتر \ Daniel Mears على تويتر: "Jermelle Cudjo looks wears a training mask,or is it, before the #lions take on the #chargers http://t.co/3pgQo5gzqv http://t.co/aYV3oExCcz" تويتر \ Daniel Mears على تويتر: "Jermelle Cudjo looks wears a training mask,or is it, before the #lions take on the #chargers http://t.co/3pgQo5gzqv http://t.co/aYV3oExCcz"](https://pbs.twimg.com/media/COzluD3UYAAqS2d.jpg:large)