Since this fake Coronavirus Covid-19 scam, 5G scam & masks deprived you of oxygen.
Don’t do QiGong. It’s New Age.
https://www.livestrong.com/article/344130-foods-to-increase-the-oxygen-in-the-blood/
https://www.airofit.com/blogs/all-blog-posts/how-to-get-more-oxygen
https://www.healthline.com/nutrition/foods-that-increase-blood-flow
https://www.stylecraze.com/articles/foods-rich-in-oxygen/?amp=1