Have you tried out all added sugar? If you're looking for some kind of trick I'd say that might qualify. Really the main thing is to eat well, exercise, and get adequate sleep, but everyone knows that. From what I understand, some people still don't realize how toxic sugar (specifically fructose) is.
So, my weird tip (not so weird) is to completely avoid added sugar. Start looking at labels. If sugar is an ingredient, do not consume. Simple as that. This implies that if there is no ingredient list (not packaged / processed food) then that item is acceptable. I'd further add that such an item is preferable.
Regarding your O2 hack, we don't use all of the oxygen we breathe in, we exhale a lot back into the atmosphere, so no, the lungs do not need to be saturated. But the hack here is to force the body to do work it doesn't really need to do for survival, that way it requires more O2. Exercise is the hack.
So, my weird tip (not so weird) is to completely avoid added sugar. Start looking at labels. If sugar is an ingredient, do not consume. Simple as that. This implies that if there is no ingredient list (not packaged / processed food) then that item is acceptable. I'd further add that such an item is preferable.
Regarding your O2 hack, we don't use all of the oxygen we breathe in, we exhale a lot back into the atmosphere, so no, the lungs do not need to be saturated. But the hack here is to force the body to do work it doesn't really need to do for survival, that way it requires more O2. Exercise is the hack.