Distinguish between constipation and indigestion. Mention their major causes.

(N/A) In constipation,the faeces are retained within the rectum as the bowel movement occurs irregularly.
The reasons for constipation include lack of water intake,lack of fibre in food,lack of exercise,stress,and certain medications.
In the condition of indigestion,the food is not properly digested,leading to a feeling of fullness.
The causes of indigestion include inadequate enzyme secretion,anxiety,food poisoning,overeating,and consumption of spicy food.