Tobacco is a legal drug sold in cigarettes, cigars, pipes, snuff, chew, and spit tobacco.

Nicotine is the active ingredient in tobacco products, and is one of more than 4000 chemicals found in tobacco smoke.

Researchers have identified 250 chemicals in tobacco smoke that cause cancer in humans and animals.

Nicotine is absorbed from the smoke in the lungs as well as through the oral mucosa when chewed.

With regular use levels of nicotine accumulate in the body during the day and persist overnight so users are exposed to Nicotine 24 hours per day.

Nicotine takes seconds to reach the brain and has a direct effect on the body for up to 3 minutes.

Nicotine can act as a stimulant and a sedative.

Immediately there is a discharge of epinephrine and glucose which causes increased blood pressure, increased
respiratory rate, and increased heart rate.

Nicotine suppresses insulin output from the pancreas, which means smokers are always slightly hyperglycemic.

Nicotine also releases dopamine from the brain similar to cocaine and heroin.

Smoking is responsible for 90% of all lung cancers.

Within 2-3 weeks of quitting tobacco lung function improves by 30%. Within 9 months lungs are better able to fight infection. After five years the risk of lung cancer is cut in half. After 10 years, lung cancer risk is equivalent to someone who never smoked.

Diseases caused by smoking are: abdominal aortic aneurysm, acute myeloid leukemia,
cataracts, cervical cancer, kidney cancer, pancreatic cancer, pneumonia, peridontitis, and
stomach cancer.

Tobacco is the second major cause of death in the world.

Slang terms: Coffin nail, Cancer stick, Cig, Phag