Tobacco smoking also increases the likelihood of stomach ulcers. Tobacco smoking effects the unborn child. Women who smoke during pregnancy have smaller babies on average than do non-smokers. There is an increased risk of premature births and a greater occurrence of miscarriages and stillbirths. Tobacco can lead to physical and psychological dependence.
Tobacco smokers develop a craving for nicotine.
This makes stopping smoking difficult. Withdrawal symptoms observed in people who have recently stopped smoking include sleep disturbances, tension and irritability. Non-smoker's health can be harmed by breathing tobacco smoke. Second-hand smoke can cause dizziness, headaches, faintness, sore eyes and throat together with nausea. The effects are increased in a small or poorly ventilated room.