All living organisms require oxygen without which life
cannot be sustained. Of all the elements
oxygen is the most vital element of the human body. Oxygen is life –giving and
life sustaining element. All the body’s activities like brain function,
respiration, elimination of waste are regulated by oxygen.
Around 90% of the body’s energy is created by oxygen. The
body’s ability to think, feel and act is done by the energy supplied from
oxygen. Oxygen initiates chemical reactions that
metabolize fats, proteins, and carbohydrates to produce energy.
Human body is made up of several millions of cells. They require
oxygen for their proper functioning. Optimum health can be achieved by our body
only when our cells perform efficiently. In our body oxygen combines with
various elements to burn or to reduce them for various purposes. This is called
oxidation.
Oxidation is the interaction between oxygen molecules and
other substances ranging from metals to living tissues. For example:
1.When iron is exposed to atmosphere it begins to rust.
Rusting of iron is oxidation.
2.When a freshly cut apple turns brown oxygen of the atmosphere
reacts with the apple to turn it brown.
Oxidation is a normal cellular function that goes on
continuously throughout the day. Oxidation is a
natural process that happens during the normal cellular functions called cell
metabolism.
It is essential for:
- various metabolic activities
- better circulation of blood to various organs.
- assimilation, digestion, elimination of waste products
- purification of blood from toxic substances
- strengthening the immune system
- healing diseased organs and organ systems
- repairing the worn out and damaged cells
- recuperation from disease during sleep
- keeping the body healthy
Oxygen is the
most essential component of all living functions of the body. When oxygen
interacts with cells of any type, whether it is an apple slice or an iron nail
or any living tissue in our body, oxidation occurs. The negative side of oxygen is that it is highly
reactive and damaging. It can damage body cells and tissues. That is what we
see in the case of an apple slice turning brown.
The cause of this “oxidative damage” is because
of oxygen-containing molecules. They are mostly unstable. They are highly
energized molecules that contain an unpaired electron.
During the process of cell metabolism about 2% of the cells are
either killed or damaged and turns into free radicals. The free radicals generated in the body takes
electrons from nearby molecules, damaging vital cell components and body
tissues.
The free radicals often
injure the cells, damaging the DNA, which creates the seed for various diseases.
When a cell's DNA changes, the cell undergoes mutation. It grows abnormally and
reproduces abnormally and quickly. These free
radicals attack the healthy cells of our body causing number of diseases like
cancer, heart disease, diabetes, decline in brain function and the immune
system.
The free radicals are
generated by certain external sources like air pollution. Food and water also
harbor free radicals. Contamination of food, polluted water and contaminated
water produce free radicals. Nowadays, spraying
chemical pesticides to crops has also contributed to increase in production of free
radicals. Exposing our skin to sunlight also hasten the production of free
radicals.
Habits like
cigarette smoking, drinking alcoholic beverages also increases the production
of free radicals in our body causing health disorders like cancer, heart
disease, diabetes etc. Stopping smoking and drinking alcoholic beverages help
to preserve health. Free radicals are dangerous because they do not damage just
one molecule. But they trigger a chain reaction destroying body’s natural
defense mechanism.
Today, people
need to guard against pollution of different kinds. We live in the toxin filled
environment. So the oxidative burden on the body is much higher than earlier
days. Certain substances known as antioxidants can help prevent this kind of damage. There
is a special relationship between oxidative damage and antioxidant protection.
Antioxidants work to stop the damaging,
disease-causing chain reaction that free radicals have started. Each type of
antioxidant works either to prevent the chain reaction or stop it after it has started.
There are three
main types of antioxidants. They are:
A: Enzymes B:
Vitamins C: Phytochemicals
A: Enzymes
Antioxidant enzymes
are antioxidants that can be uniquely synthesized in the human body. They are
made from the protein and minerals in the food we eat. It is important to have
good quality protein and minerals in our daily food.
B: Vitamins
Vitamins cannot
be created by our bodies. Vitamins need to be supplemented every day, without
fail. The typical antioxidant vitamins are vitamins A, C, E, and M (folic acid)
etc.
C: Phytochemicals
Phytochemicals
are antioxidants created by many plants to protect themselves and it has been
found that if people ingest these plants, the phytochemicals also work as
antioxidants within our bodies.
Flavonoids, poly phenol, carotinoids are some of the phytochemicals to
neutralize the free radical assault.
The body needs a combination of vitamins
and minerals, such as vitamins A, C, E, and minerals like potassium, calcium,
selenium etc to neutralize these adverse effects of free radicals. Multivitamins
and vitamin supplements can provide the body with an antioxidant boost. However eating variety of healthy foods
prepared from fruits, vegetables, whole grains and legumes is very important as
it boosts the percentage of antioxidants and decreases the production of free
radicals. One must have multiple servings of fruits and vegetables to
increase the percentage of antioxidants in the body.
The health benefits of Antioxidants are as follows:
- increased energy
- better resistance to
- colds & flu
- softer, younger-looking skin
- relief from allergies
- relief from asthma
- improved circulation
- weight loss
- prevention of high blood pressure
- improved digestion
- relief from arthritis
- help in controlling diabetes
- improved sleep
- relief from menstrual symptoms
- better memory, concentration
Diabetes is a chronic metabolic disorder. It increases oxidation
of glucose to form free radicals. Patients suffering from diabetes will be
exposed to the following pathological conditions:
1. Oxidative stress resulting in decreased insulin production or impaired
insulin secretion of the pancreas.
2. Production of
antioxidant enzymes will be abnormal and the enzyme activities will be lower
than the normal.
In this century, diabetes is affecting the world population vigorously.
This disease is spreading like a wild fire.
About 347 million people worldwide
have diabetes. It is becoming a killer disease of the human population. WHO
projects that diabetes will be the major cause of death in 2030.
The main reason for the
wide spread of this disease is improper food habits, polluted environment, non
inclusion of proper percentage of fruits, vegetables, cereals and pulses (large
percentage of antioxidants are found in these) and lack of proper exercise. It
is very important to fight against this deadly disease to save humanity. The treatment
should counteract free radical production and increased insulin production.
The need of the day is to
bring out proper single medical formulation containing enzyme rich natural antioxidants
from fruits, proper mix of necessary vitamins, minerals and phytochemicals
extracted from plants. Moreover, all the
people including the diabetics should be educated via various available social media
through documentary films about the importance of eating proper balanced
diet. Health education should start from
the primary school. Importance of staying healthy and remaining healthy should
be stressed. Eating right will pave way to stay and remain healthy. Balanced
diet is the only remedy to maintain health at all ages. After all “Health is Wealth”.











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