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Eight hours later, the carbon monoxide levels in your blood will return to normal, while the oxygen levels will increase

Nicotine, which is the addictive substance in cigarettes, releases a chemical in the brain known as dopamine, which is also know as the reward response and the reason why we become dependent on substances

This process stops your airway from collapsing so you do not experience breathing pauses

Local stop smoking services provide a highly cost-effective approach to help people quit smoking since 2016, local authority spending for these services has declined by 40% (in real terms) compared to a 21% decline for the public health grant overall