Satchmo is great but he is no Jiminy Cricket
Nicotine addiction can harm mental health and be a source of stress
Among the first signs are: a persistently irritated spot in the mouth that does not change or gradually worsens, white, red, or dark patches on the mucous membrane , signalling that tissue is reacting to repeated irritation, non-healing sores or ulcers that persist for more than one to two weeks, frequent gum bleeding without an obvious cause, swellings, hardened areas, or small lumps in the mouth
Atlanta, GA: Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2002
Accelerated metabolism of nicotine and cotinine in pregnant smokers