In theory there’s no link, but members have experienced weird symptoms! Some members have studied in detail all the muscles & the effects painful muscles in the neck (from ES) can have further down the spine…
This discussion about the lymph system might be interesting, @PatientD has posted some good info:
Coping mechanisms for jugular compression - General - Living with Eagle
We’ve had a couple of members with May Thurner syndrome too- a pelvic condition where the iliac vein can be compressed- so if you search for that in the previous discussions you can get some info.
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