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After smoke of give up of the person that smoke, the body can stroke those who because smoking is caused,make the same score to damage stage by stage, but, this does not mean the status before the body can restore completely to smoke. The odds that contracts heart disease perhaps won't compare Everyman tall, but the odds that suffers from lung cancer, emphysema is resided however do not fall high, although already smoke of Buddhist monastic discipline a few years.

Research center of cancer of Canadian Britannic Colombia (Laji Charlie says the scientist of British Columbia Cancer Research Centre) : "Smoke of Buddhist monastic discipline conduces to reduce sicken risk, this is beyond question, just cannot reduce the level to the front of smoking. " Charlie and colleague from never had smoked cigarette 4 times, be in 8 times " enjoy " smoking, once had smoked cigarette 12 times (time of smoke of Buddhist monastic discipline varies to 32 years from 1 year) in the respiratory tract that suffers the person that try, part raze a few organizations, analysis among them the circumstance that gene conveys. They discover, in the respiratory tract organization of the person that smoke, the expression of many gene produced a change, some changes can return to normal after smoke of Buddhist monastic discipline, but still have the change that amounts to 124 gene happening, cannot regain normal level.

In these gene that produced not reversible change, protein of some gene complex and pneumonia are having close connection, for instance, the lifecycle that has a few gene and cell is concerned, it can be in the respiratory tract of the person that has had smoking experience expression (no matter be,smoking or already) of smoke of Buddhist monastic discipline, and the disrupt frequency that their expression can reduce respiratory tract cell, cause thereby chronic bronchitic or emphysema.

The disease is the show that gene expression produces a change. The person that participate in the smoke of Buddhist monastic discipline that experiments this ever was the person that smoke of be addicted to is like a life, they are average before everyday smoking quantity is in a packet of above, have chronic bronchitic or the evidence of emphysema. Nevertheless, charlie returns discovery, gene expresses kind, do not have too big concern with the serious degree of lung disease, consequently the likelihood still has other factor to affect the development of the disease.

Another scientist, the research that the Afulamu Sibila of Bostonian university teachs also proves as a result, smoking can cause genetic change really. Sibila says, the gene of the person that he discovered smoking really in research conveys means happening to change. When Sibila is evaluating Charlie's research to work. Say: "Respiratory tract cell is it seems that the change produced on molecular level, and this kind of change can last a lot of years. Charlie's job is good germinant. But, come round to look with respect to eye, existing between the change that still cannot say gene expresses kind and lung disease inevitable causal. " to solve this problem, sibila prepares to begin next research to work: Track same the person that approve smoking is in the body state of around of smoke of Buddhist monastic discipline, analyse the relationship between occurrence frequency of gene expression and disease next.