0_Wizard
i used to love to smoke! the most common substance is dried leaves of the tobacco plant
Most commonly the substance is the dried leaves of the tobacco plant which have been rolled into a small square of rice paper to create a small, round cylinder called a "cigarette".
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Smoking
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Smoking
Smoking is a practice in which a substance is burned and the resulting smoke breathed in to be tasted and absorbed into the bloodstream. Most commonly the substance is the dried leaves of the tobacco plant which have been rolled into a small square of rice paper to create a small, round cylinder called a "cigarette". Smoking is primarily practiced as a route of administration for recreational drug use because the combustion of the dried plant leaves vaporizes and delivers active substances into the lungs where they are rapidly absorbed into the bloodstream and reach bodily tissue. In the case of cigarette smoking these substances are contained in a mixture of aerosol particles and gasses and include the pharmacologically active alkaloid nicotine; the vaporization creates heated aerosol and gas to form that allows inhalation and deep penetration into the lungs where absorption into the bloodstream of the active substances occurs.
Nicotiana tabacum
Nicotiana tabacum, or cultivated tobacco, is an annually-grown herbaceous plant. It is found only in cultivation, where it is the most commonly grown of all plants in the "Nicotiana" genus, and its leaves are commercially grown in many countries to be processed into tobacco. It grows to heights between 1 and 2 meters. Research is ongoing into its ancestry among wild "Nicotiana" species, but it is believed to be a hybrid of "Nicotiana sylvestris", "Nicotiana tomentosiformis", and possibly "Nicotiana otophora". In their great first voyage to the New World, Christopher Columbus and his expedition were introduced to a plant whose smoke was called "tobacco" by the natives of Hispaniola.
Cigar
A cigar is a rolled bundle of dried and fermented tobacco leaves, and made to be smoked. They are produced in a wide variety of sizes and shapes. Since the 20th century, most all cigars are made up of three distinct components; the first being the tobacco itself which fills the center. The second is a binder leaf which holds the filler together. Finally there is the outer wrapper, which is rolled around the binder to complete the cigar, this is often printed with the cigar companies’ logo. These components make up the cigar and enable the smoker to enjoy the tobacco easily. Cigar tobacco is grown in significant quantities primarily in Central America and the islands of the Caribbean, including Cuba, the Dominican Republic, Haiti, Honduras, Mexico, Ecuador, Nicaragua, Guatemala, Panama, and Puerto Rico; it is also produced in the Eastern United States, the Mediterranean countries of Italy and Spain (in the Canary Islands), and in Indonesia and the Philippines of Southeast Asia.
Tobacco
Tobacco is a product prepared from the leaves of the tobacco plant by curing them. The plant is part of the genus "Nicotiana" and of the Solanaceae (nightshade) family. While more than 70 species of tobacco are known, the chief commercial crop is "N. tabacum". The more potent variant "N. rustica" is also used around the world. Tobacco contains the alkaloid nicotine, which is a stimulant, and harmala alkaloids. Dried tobacco leaves are mainly used for smoking in cigarettes, cigars, pipe tobacco, and flavored shisha tobacco. They can also be consumed as snuff, chewing tobacco, dipping tobacco and snus.
Types of tobacco
This article includes a list of tobacco cultivars and varieties. Aromatic Fire-cured smoking tobacco is a robust variety of tobacco used as a condimental for pipe blends. It is cured by smoking over gentle fires. In the United States, it is grown in northern middle Tennessee, western Kentucky and in Virginia. Fire-cured tobacco grown in Kentucky and Tennessee is used in some chewing tobaccos, moist snuff, some cigarettes and as a condiment leaf in pipe tobacco blends. It has a rich, slightly floral taste, and adds body and aroma to the blend. Another fire-cured tobacco is Latakia and is produced from oriental varieties of "N. tabacum".
Tobacco smoking
Tobacco smoking is the practice of smoking tobacco and inhaling tobacco smoke (consisting of particle and gaseous phases). (A more broad definition may include simply taking tobacco smoke into the mouth, and then releasing it, as is done by some with tobacco pipes and cigars.) The practice was believed to begin as early as 5000–3000 BC. Tobacco was introduced to Eurasia in the late 17th century where it followed common trade routes. The practice encountered criticism from its first import into the Western world onwards, but embedded itself in certain strata of a number of societies before becoming widespread upon the introduction of automated cigarette-rolling apparatus.
Nicotine
Nicotine is a potent parasympathomimetic stimulant and an alkaloid found in the nightshade family of plants. Nicotine acts as an agonist at most nicotinic acetylcholine receptors (nAChRs), except at two nicotinic receptor subunits (nAChRα9 and nAChRα10) where it acts as a receptor antagonist. Nicotine is found in the leaves of "Nicotiana rustica", in amounts of 2–14%; in the tobacco plant, "Nicotiana tabacum"; in "Duboisia hopwoodii"; and in "Asclepias syriaca". Nicotine constitutes approximately 0.6–3.0% of the dry weight of tobacco. It also occurs in edible plants, such as those in the Solanaceae family, which include eggplants, potatoes, and tomatoes for example, but at trace levels generally under 200 nanograms per gram, dry weight (less than .00002%).