Biochemically, ginger can stimulate the production of digestive juices, such as gastric acid and bile, which can increase the speed of digestion. However, excessive stimulation of these digestive juices can lead to heartburn, acid reflux, and other digestive problems. This is because excessive acid production can irritate the lining of the esophagus and cause discomfort.

In addition, ginger can also have a laxative effect and can stimulate peristalsis, the rhythmic contractions of the muscles in the intestines that move food through the digestive tract. Excessive stimulation of these muscles can lead to diarrhea, bloating, and other digestive problems.

Extract entities and relations of above text in the following format:

(subject_entity_instance: entity_category) (relation) (object_entity_instance: entity_category)

Here is an example:
(Nopept: nootropic, medication, compound) (was made in) (Russia: country, location)
(Ginger: food, spice) (can stimulate) (production of digestive juices: bodily process)
(Gastric acid: bodily secretion) (can increase) (speed of digestion: bodily process)
(Bile: bodily secretion) (can increase) (speed of digestion: bodily process)
(Excessive stimulation of digestive juices: bodily process) (can lead to) (heartburn, acid reflux, and other digestive problems: health condition)
(Excessive acid production: bodily process) (can irritate) (lining of esophagus: bodily structure)
(Ginger: food, spice) (can have) (laxative effect: bodily process)
(Ginger: food, spice) (can stimulate) (peristalsis: bodily process)
(Excessive stimulation of muscles in intestines: bodily process) (can lead to) (diarrhea, bloating, and other digestive problems: health condition)