The average number of cigarettes smoked per person.
One should also remember that:
- 2 packs of cigarettes contain a deadly dose of nicotine. It means that after smoking this amount of cigarettes in one sitting, one should call the ambulance.
- A pack of cigarettes per day equals 500 X-ray exposures per year.
- After inhaling, nicotine reaches the brain within 7 seconds and causes a spasm of blood vessels; hence, the disruption of tissue supply with oxygen.