* Source is the packaging I’ve just read for a pack of tobacco in the UK which says it has 70 cancer causing substances
In: 2
Two or three main issues . . .
* The plant grows chemical defenses against things that prey on it. This is why there are chemicals like nicotine that kill insects (and us).
* Drawing burning hot smoke into your lungs does physical damage to the cells, and many never get fully fixed, and can become cancerous.
* Chemicals in the smoke are changed from what they were in the live plant, and these are often very reactive and can do cell damage. Some enter the cells and damage DNA.
* Tobacco is not the only substance in cigarettes. Some additional chemicals are added to make smoking more addictive.
Two or three main issues . . .
* The plant grows chemical defenses against things that prey on it. This is why there are chemicals like nicotine that kill insects (and us).
* Drawing burning hot smoke into your lungs does physical damage to the cells, and many never get fully fixed, and can become cancerous.
* Chemicals in the smoke are changed from what they were in the live plant, and these are often very reactive and can do cell damage. Some enter the cells and damage DNA.
* Tobacco is not the only substance in cigarettes. Some additional chemicals are added to make smoking more addictive.
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