Why Smoking Is Injurious To Health?

smoking is injurious to health

smoking is injurious to health

smoking is injurious to health− a well known statutory warning found in every packet of cigarette. But what are the reasons due to which it causes more deaths than alcohol or drug usage?

The effect of cigarette smoking is the deadliest because of its addiction. It can be quite easy to light up a cigarette. But it takes a toll to quit smoking.

Cigarette smoking in general can reduce human life expectancy by 25 years. Here is the list of how smoking can be injurious to our different body parts.


Smoking causes to build a dense layer of plaque in the blood. This plaque gets attached to the walls of arteries− a phenomenon is known as atherosclerosis.

This in turn causes the arteries to become narrow and hence reduces the blood flow and in turn increases the chances of blood clotting.

The narrowing of the arteries results in increased blood pressure and heart rate which can eventually lead to cardiac arrest and coronary heart disease.

Moreover, the presence of carbon monoxide and nicotine in cigarettes make the heart work harder and faster, making smokers difficult to exercise.


Smoking causes the greatest amount of injury to the lungs. It destroys the small hairs present in upper parts of airways and damages the air sacs (known as alveoli).

The hairs protect the lungs from foreign particles and germs by acting as a shield. While this natural cleaning system is damaged, germs and other harmful particles can enter the lungs freely.

The most common lung and respiratory problems caused by smoking are as follows−

  • Chronic obstructive pulmonary disorder (COPD)− This is a long-term disease and it causes wheezing, shortness of breath and chest tightness.
  • Chronic bronchitis− This is caused by the production of large amounts of mucus leading to a cough. The airways become inflamed and get blocked leading to infection.
  • Emphysema− this disease reduces the number of sacs in the lungs and breaks the walls in between and hence destroys the patient’s ability to breathe, even when resting.

Other diseases include pneumonia, asthma and tuberculosis.

Digestive and immune system

Smoking causes injury to our health by causing heart burns and by delaying the healing of peptic ulcers.

It also affects body’s natural immune system, as a result causing auto-immune diseases like Crohn’s disease and rheumatoid arthritis.


Smoking causes injury to delicate blood vessels of our eyes. It causes bloodshot appearance of eyes and itching, leading to cataract and increased chances of degeneration and loss of eyesight.


Smoking leads to deprivation of oxygen to the skin leading to the loss of its texture. This makes the skin dull and gray and speeds up the process of aging.

Smoking can prematurely age the skin by 10-20 years, creating facial wrinkles around the eyes and mouth more rapidly.


Smoking causes bad breath and staining of teeth. The deposition of plaque around the teeth causes a yellowish film.

This leads to gum diseases and the loss of tooth. Moreover, smoking causes damage to the sense of taste.


smoking is injurious to health our body as it depletes the amount of calcium in our bones making them weak and brittle. This can gradually lead to osteoporosis and broken bones.

Smoking also affects the blood vessels in hands and legs causing chronic pain. This can further lead to gangrene of toes and feet.


Smoking causes the chances of stroke which can lead to brain damage and death.

It can cause a brain aneurysm, which occurs when blood vessel weakens and creates a bulge. This bulge can burst and cause subarachnoid hemorrhage.

Reproduction and fertility

Smoking can have a huge effect in deciding the fate of the future generation too.

  • In men− smoking is injurious to health causes erectile dysfunction, lowers the sperm count and impairs sperm motility.
  • In women− Smoking imbalances the estrogen hormone. It causes dryness of vagina and reduces blood flow to the genitals. smoking is injurious to health ,Smoking increases the chances of miscarriage, premature birth, and fetal death.


smoking is injurious to health :- Smoking causes cancer of lungs, larynx, oral cavity, pharynx, esophagus, kidney, cervix, liver, pancreas, stomach, colon/rectum, and bladder.

Tobacco smoke has around 7000 chemicals in it and around 70 substances are directly linked to the causing of cancer.

Around 87% of lung cancer deaths are caused due to smoking.

Cigars, pipe-smoking, menthol cigarettes and all other forms of tobacco can cause cancer and health related problems. There is no safe way of using tobacco. So quit tobacco to save yourself and your loved ones.

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