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Is it better to be a light smoker

Among the 73 compounds in cigarette smoke which have been classified by IARC as having sufficient evidence for carcinogenicity in either laboratory animals or humans, there are more than 20 which are lung carcinogens

Primary Triggers Contributing to the Odour Nicotine: Acts as the primary addictive agent by stimulating nicotinic acetylcholine receptors in the brain, reinforcing repeated use

The researchers note that the effects need to be further investigated in humans and exposure needs to be observed over a longer period of six months since humans mature slower than mice

During the repair phase , usually between one and three weeks, damaged tissue is cleared away while new cells and blood vessels are formed