Tobacco smoke consist of nicotine which act as an addictive drug. It causes continuous smoking.

7,000 chemicals including nicotine are inhale by people who smoke. Higher percentage of these chemicals are extracted from burning tobacco leaf. These chemicals are highly active and causes damages in the body.

There are 70 well known chemicals which causes cancer in tobacco smoke. Smoking affect 90% of organs in the body which degrade health generally.

Harmful chemicals in tobacco smoke

Tar: Tar particles contain chemical which are cancerous . It stains lung tissue, teeth and fingernails, It is brown and sticky.
Metals: Chromium, lead, nickel, cobalt, cadmium, beryllium, arsenic, are present in tobacco which they tend to cause cancer.
oxidizing chemicals: they are highly reactive chemicals which causes heart disease, stroke and blood vessel disease.
carbon monoxide: It takes the place of oxygen in the body, which makes it difficult for oxygen to transport through the organs and muscle of a smoker.

Effect on circulatory system

It reduces blood flow to the fingers and toes.
It increase blood pressure and heart disease.
It block the supply of blood which lead to stoke and heart problem.

Effect on human sex organs

It reduce female fertility and cause irregularities in menstrual cycle.
Deformation of sperm in male.
It causes low sperm count in male.
It can also lead to female menopause to occur earlier.
It can cause miscarriage, still birth and premature birth.

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