This article has the nuance that wearing a mask will cause people to feel greater well being, and they may, but the research only demonstrates an "association" or correlation, which is likely in part due to happier people having the spare strength to wear masks, and rich, educated, healthy and or prideful people having the tendencey to be or claim to claim to be happy and mask wearers, sufficiently to override the downsides of masks. But all the same, lets wear masks.