Having listed all the reasons, it must be said that the main one is the failure of the lower esophageal sphincter, which is associated with neurovegetative disorders. Changes in esophageal clearance and motility of the esophagus, stomach, and duodenum are also often associated with disorders of the autonomic nervous system.
Neuromuscular dysfunction of the esophagus, which develops after frequent exacerbations. Respiratory diseases (bronchial asthma, obstructive bronchitis). Increased pressure in the abdominal cavity with constipation, excessive physical exertion, heavy lifting, prolonged stay in an inclined position.