Health means is running a course on the lymphatic system and this is one of their “free gifts” as a precursor to their course.
I am pretty convinced of the importance of caring for the the lymph system and glymphatic system which drains the brain of waste. I haven’t read this properly yet but it might be of interest.
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Ok, flicked through it now. Pretty basic but might be useful for anyone who has not considered their lymph system before. It’s basically a precursor to their paid course.