Natural night - ten hours real darkness (no light) starting and ending at the same time (red light is okay.) Many immune and detoxification processes are left t

Natural night - ten hours real darkness (no light) starting and ending at the same time (red light is okay.) Many immune and detoxification processes are left to your nightly melatonin cycle, when you don't need energy to do other things. Other than that: strictly avoiding any supplement that's touted to "boost the immune system." I'm not joking at all, putting your immune system into high gear for no reason repeatedly is a bad idea, and all that crying wolf will leave it less able to respond when really needed.