If one thing is to be shared, it's this. One of the biggest impacts on health. If I was given a 2nd slot to fill, I'd say washing/rinsing out our nose cavities with distilled clean water that has had added salt to it (specifically for this purpose), and typically people use a nettle pot but I use the squeeze bottle method, as that works for me. It's typically referred to as "irrigating your nasal cavity" or just "nose irrigation".  I remember when I first tried some nose irrigation, after working a full day sanding a home. All this paint and dust and other shit just blew out, and I remembered that in the past, this would have stayed in my body and slowly been removed. I also the next day realized I didn't have any irritation or pain in my throat, and almost all the time, even when wearing a mask while sanding, I would have throat pain from microbes and dust and paint dust.  After clearing out my nose with salty distilled water, I've never looked back, even when I'm tired or feeling lazy, I make sure to irrigated my nose. If you try this, please be conscious of the water you use, as this will be in contact with surface blood vessels, and people have gotten crazy infections like amoebas which eat brain matter. Yeah wtf. So clean distilled water!!!  Also!!! If you are afraid or cautious of this, because you remember the pain you felt the last time you went swimming and water got into your nose, real deep, don't worry. The addition of salt is what ensures the distilled water is similar to the fluids in your body and there will be zero pain!!!    Hope this helps.