Vomiting is the body’s method of ridding itself of unwanted or harmful
substances from the stomach. The peristaltic movements of the stomach
and oesophagus reverse their normal direction and the food is expelled.
There are many causes of vomiting, but one of the most common is over
eating, especially when the food contains a high proportion of fat.
Vomiting
also occurs when we eat something very indigestible or poisonous.
When we have a greenish vomit usually called as ‘bilious’ or ‘liverish’,
we get a bitter taste and it is often the result of having over eaten. The liver
is unable to cope with the excessive fat and we get a feeling of nausea.
Indigestion is a general term used when there is difficulty in digesting
food. Healthy people can usually avoid problems related to digestion by:
a) having simple, well balanced meals
b) eating food in a leisurely manner
c) thoroughly masticating the food
d) avoiding taking violent exercise soon after eating food
e) Drinking plenty of water and having regular bowel movements.
A more serious form of indigestion is caused by stomach and duodenal
ulcers. These conditions occur more often in people who may be described
as hurried or worried. Thus, ulcers occur more often in busy people who
get into the habit of hurrying over meals and rushing from one activity to
another without sufficient rest.
Those who are able to relax, who are not
continually tensed up, and who live at a slower pace, seldom get ulcers.
You studied about recent researches in the peptic ulcers caused by some
bacteria in previous classes.
Proper functioning of all life processes require adequate amount of
food in all living organisms. It is not just the intake of food but its
assimilation and expulsion of wastes that play an important role. In take of
fibre rich food avoids constipation.
We know that food is the main source to maintain biological processes
in a perfect manner. Our diet should be a balanced one which contains
proper amount of carbohydrates, proteins, vitamins, mineral salts and fats.
Two third of world population is affected by food related diseases.
Some
of them are suffering by consuming high calorific food.
Most of them are
facing various diseases due to lack of balanced diet. It is very important to
discuss about food deficiency diseases.