smoking cigarettes cause How does cancer? Smoking and Your Heart -

Smoking, tobacco and cancer Smoking causes at least 16 different types of cancer and is the biggest cause of lung cancer in the UK, and worldwide

Although tobacco use in the form of cigarette smoking is declining in countries such as the USA, many other countries are experiencing an increase in tobacco use, especially within the poorer countries

Surprisingly, one of the variations in DNA sequence associated with these problems has been located at the gene that makes the nicotinic acetylcholine receptors

Unlike cigarettes, e-cigarettes do not burn tobacco with fumes or soot that deliver nicotine and toxins but the liquids most contain unknown levels of nicotine which is much more addictive

There are also chemicals in tobacco smoke that stop our cells from repairing damaged DNA