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Follow the instructions given by your doctor, or read the information provided on the product label

Nicotine increases a users heart rate and raises blood pressure and is highly addictive

London: Pitman Medical Publishing Co Ltd

These nicotine replacement therapy products also have no serious side effects on cigarette withdrawal, which is why more researchers are looking into their positive cognitive effects

Michael Siegel, a professor at the Boston University School of Public Health and a career anti-smoking researcher, notes that this obsession with minor differences represents a curious role reversal, with cigarette companies now reminding regulators that "indeed all cigarettes are hazardous and there is no such thing as a safer cigarette." "My opinion is that most, if not all of the substantial equivalence applications involve minor changes that have no substantial bearing on altering the public health significance or impact of the products," says Siegel

But I do hope that by staying clean I can slowly change my fathers heart.