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Remind them how happy you are that they chose to quit smoking
Several of these changes, including damage to the cells that line the airways, destroyed cilia, and increased mucus, make breathing difficult
The study used 13 human participants observed before and after two separate smoking sessions: one in a completely closed, unventilated room (a hotbox), and one in a ventilated space
Some of the chemicals found in tobacco smoke include: Ammonia Arsenic Benzene Carbon monoxide Formaldehyde Hydrogen cyanide Lead Nicotine Polycyclic aromatic hydrocarbons (PAHs) Radioactive elements, like polonium-210 Tobacco-specific nitrosamines (TSNAs) Many of these dangerous chemicals can cause cancer