Tobacco is addictive as it contains nicotine, an addictive substance, and this can make it very hard but not impossible to quit. Cigarettes, beedis, cigars, chuttas, dhumti, pipe, hooklis, and hookah are the smoking forms of tobacco. Smokeless forms of tobacco include chewing paan (betel quid) with zarda (tobacco), guthka, pan masala, Manipuri tobacco, mawa, khaini, kaddi pudi, chewing tobacco leaves, mishri, gul, and ingestion of tobacco water or use as snuff.
Smoking harms nearly every organ in the body, causes many diseases, and compromises smokers' health in general. Nicotine, a component of tobacco, is the primary reason that tobacco is addictive, although cigarette smoke contains many other dangerous chemicals, including tar, carbon monoxide, acetaldehyde, nitrosamines, and more.
A person who is smoking or chewing thinks it gives them a lift & improves alertness , energy, relaxing and gives them company when they are alone but do not realize that they are entering into the most dreadful addiction, which is all physiologically, psychologically and socially addictive – turning them into an addict.
According to WHO, tobacco killed 100 million people in twentieth century and it will kill 1 billion people in the twenty first century (ten times higher).
Figures reveal an increase in deaths caused due to tobacco in India from 1.4% in 1990 to 13.3% in 2020. Tobacco is a silent killer and single largest leading cause of preventable disease i.e. Cancer, Heart attacks, Chronic Obstructive lung disease and Asthma.
India has a high rate of sub-mucos fibrosis and oral cancer accounting for 1/3rd of the world burden. The rate of growth of “gutka” chewing has over taken that of smoking forms of tobacco. Wider availability and affordability has even attracted women and made it easier for them to become nicotine addicts by chewing tobacco. The rising rate of lung cancer in women in India is proof of its long term harmful effects.
Passive Smoking is worse than smoking because it affects non smokers and results in inhaling of nicotine and other carcinogens while not smoking themselves but being affected by it because someone near and dear smokes. Passive smokers become the victims and have to pay for it, resulting in miscarriages, premature deliveries, low birth weight babies, sudden infant deaths and attention deficient disorders in children, a variety of respiratory diseases and cancers just as if the victim was the active smoker.
 There are more than  4,000 chemicals found in the smoke of tobacco products. Of these, nicotine,  first identified in the early 1800s, is the primary reinforcing component of  tobacco.
      Cigarette smoking is  the most popular method of using tobacco; however, many people also use  smokeless tobacco products, such as snuff and chewing tobacco. These smokeless  products also contain nicotine, as well as many toxic chemicals.
  The chemistry: Nicotine in  tobacco is a very powerful substance that affects mood, focus and thinking. In  seven seconds, a puff of nicotine begins to calm a smoker’s brain. 
      The cigarette is a very  efficient and highly engineered drug delivery system. By inhaling tobacco  smoke, the average smoker takes in 1–2 milligrams of nicotine per cigarette.  When tobacco is smoked, nicotine rapidly reaches peak levels in the bloodstream  and enters the brain. A typical smoker will take 10 puffs on a cigarette over a  period of 5 minutes that the cigarette is lit. Thus, a person who smokes about  1½ packs (30 cigarettes) daily gets 300 "hits" of nicotine to the  brain each day. In those who typically do not inhale the smoke—such as cigar  and pipe smokers and smokeless tobacco users—nicotine is absorbed through the  mucosal membranes and reaches peak blood levels and the brain more slowly.
      Immediately after  exposure to nicotine, there is a "kick" caused in part by the drug’s stimulation  of the adrenal glands and resulting discharge of epinephrine (adrenaline). The  rush of adrenaline stimulates the body and causes an increase in blood  pressure, respiration, and heart rate
  The behavioural  psychology: The  smell of a beedi or a cigarette or a cup of coffee automatically produces a  strong urge to smoke. Similarly the sight of strings of pan masala in a pan shop  or extreme tiredness after work or getting bored may urge a person to chew. A  lot of smoking is done automatically, without thinking about it. Similarly for  chewers, a spicy meal or hungry stomach may be the stimulus to chew. Smokers  often feel they need a cigarette to feel right or to think clearly, when a chewer  misses a packet, he/she feels lost and irritated. People with a history of  depression, schizophrenia, attention deficit disorder and other conditions may  have a harder time stopping tobacco use.
The social factors: Smoking is a social ritual for many people, shared with family, friends or co-workers. When other people light up, it is often natural for the smoker to join them.
Facts  of Tobacco
       
Cigarette smoking or Gutkha chewing would have been a part of your life for some time, have you really cared to know what is in a cigarette that you smoke or in a packet of gutkha or pan masala that you chew.
Breaking free from nicotine dependence is not the only reason to quit smoking. Cigarette smoke can cause serious health problems, numerous diseases, and death. Fortunately, people who stop smoking greatly reduce their risk for disease and premature death. Although the health benefits are greater for people who stop at earlier ages, cessation is beneficial at all ages.

Most people thing quitting cigarettes is an ordeal. It puts you through physical and mental anguish. You don’t feel good when you are withdrawing from nicotine. You can get depressed. You may feel your nerves are frayed.
 
Cigarettes  are great....... until they injure or kill you 
      They start to do damage from the very first  puff. Dry, hot chemical containing smoke and healthy mouths, windpipes and  lungs don't mix. Something is eventually going to give. If it is not cancer of  the lungs, or cancer of the pink mucous membranes of the mouth and larnyx, it  might be emphysema related decay and clogging of the lungs. If that stuff  doesn't get ya, maybe heart disease or stroke will.
WHAT DIFFERENCE WILL QUITTING MAKE
After 20  minutes:
      • Blood pressure  levels and pulse rate becomes normal.
      • Body  temperature of hands and feet increases to normal.
After 8 hours:
      • Carbon  monoxide in your body drops.
      • Oxygen level  in your blood increases to normal.
After 2 days:
      • Sense of smell  and taste will improve. You will enjoy your food more.
      • Your risk of  heart attack begins to decrease.
After 3 – 4  days:
      • Bronchial  tubes relax and your lung capacity will have increased, making breathing  easier.
After 2 weeks:
      • Blood flow  improves; nicotine has passed from your body.
Within 2 weeks  to 3 months:
      • Circulation  will improve, making walking and running easier; lung functioning increases up  to 30%.
Within 6 to 9  months:
      • You’ll  experience less coughing, sinus congestion, tiredness and shortness of breath.
After 1 year:
      • Your risk of  heart disease will be about half of what it   would have been if you continued to smoke.
After 5 years:
      • Your risk of  stroke will be substantially reduced; within 5 to 15 years after quitting, it  becomes about the same as a non-smoker’s.
After 10 years:
      • Your risk of  dying from lung cancer will be about half of what it would have been if you had  continued to smoke.
      • Your risk of  cancer of the mouth, throat, oesophagus, bladder, kidney, and pancreas will  also decrease.
Within 15 years:
      • Your risk of  dying from a heart attack is equal to a person who never smoked.
Most people find it hard to quit smoking. Quitting can be hard, but it’s not impossible. It is never too late to quit. Kicking the habit early will also help curtail the addiction.
If you’ve tried quitting smoking before but couldn’t do it, try again. Each time you try, it will get easier. You will be one step closer to quitting for good. Now is the best time to quit. It’s never too late.
Mood changes are common after quitting smoking as a result of nicotine withdrawal. They will be especially pronounced if you have been using cigarettes to manage your moods and relieve stress, depression, or anxiety. After quitting, you may be more irritable, frustrated, restless, angry, or despondent than usual. You may also experience headaches, trouble sleeping, and difficulty in concentrating. However, these changes usually get better in 1 or 2 weeks as the toxins are flushed from your body and you find other, healthy ways to manage your moods.
Withdrawal  symptoms don't last long.  
    Symptoms  are strongest the first week after you quit.  The worst part is over after  2 weeks.  As time passes, you'll feel better than when you smoked or  chewed. So be patient with yourself.