I also found this in Granny's list:

Endocannabinoids and the gastrointestinal tract: what are the key questions?
Category: PHYSICAL: DIGESTIVE STSTEM: BOWEL DISORDERS

Bottom line- Cannabinoid (CB1) receptor activation acts neuronally, reducing GI motility, diarrhoea, pain, transient lower oesophageal sphincter relaxations (TLESRs) and emesis, and promoting eating."

- Read more
British Journal of Pharmacology

Does that part I highlighted in red mean that in this study the CB1 activation reduces GERD? And does anybody have a study discussing whether that activation differs from an endocannibinoid versus THC in terms of TLESR prevention?