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The chemicals in cigarettes are toxic to the body and include: Carbon monoxide a poisonous gas found in car exhaust fumes that reduces the amount of oxygen being carried around the body Nicotine an addictive chemical that increases heart rate and blood pressure Ammonia normally used in chemical cleaners to remove dirt Tar a toxic chemical containing cancer-causing substances that forms a sticky brown residue inside the lungs

In fewer cases, injury to the brain or spinal cord can create nervous system damage which impedes erection

What are the symptoms of smoking cessation withdrawal

Here we are going to particularly focus on smoking during pregnancy

Intrinsic insular-frontal networks predict future nicotine dependence severity