why is smoking cigarettes bad for your heart Cigarette | Smoking and Tobacco Use Health Problems Caused by Secondhand
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Smokefree Island Smokefree Hampshire Speak to your midwife or health visitor, or go directly to your local stop smoking service

When your diaphragm contracts, your lungs take in oxygen

This is currently specified as

Tar is the residue produced by the burning of tobacco

They need replacement every few months as pores saturate