Diseases related to tobacco smoking have been shown to kill approximately half of long-term smokers when compared to average mortality rates faced by non-smokers.Tags: Writing A Methodology Section Of A Research ProposalPig Farming Business Plan In IndiaCreative Writing In SciencePersonal Letterhead For Cover LetterThe Female Body By Margaret Atwood EssayBoy Essay From Photo PhotographicAs I Lay Dying Symbolism EssaysThe Voice Of Reason Essays In Objectivist Thought Ayn RandWhat Is The Math Website That Solves ProblemsPort Number Assignments
Before modern times these substances have been consumed through pipes, with stems of various lengths or chillums.
Cannabis smoking was common in the Middle East before the arrival of tobacco, and was early on a common social activity that centered around the type of water pipe called a hookah.
In some cultures, smoking is also carried out as a part of various rituals, where participants use it to help induce trance-like states that, they believe, can lead them to spiritual enlightenment.
Smoking generally has negative health effects, because smoke inhalation inherently poses challenges to various physiologic processes such as respiration.
In Europe, it introduced a new type of social activity and a form of drug intake which previously had been unknown.
Perception surrounding smoking has varied over time and from one place to another: holy and sinful, sophisticated and vulgar, a panacea and deadly health hazard.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 used 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".In the 20th century, smoking came to be viewed in a decidedly negative light, especially in Western countries.This is due to smoking tobacco being among the leading causes of many diseases such as lung cancer, heart attack, COPD, erectile dysfunction, and birth defects.The health hazards of smoking have caused many countries to institute high taxes on tobacco products, run ads to discourage use, limit ads that promote use, and provide help with quitting for those who do smoke.Many ancient civilizations, such as the Babylonians, Indians and Chinese, burnt incense as a part of religious rituals, as did the Israelites and the later Catholic and Orthodox Christian churches.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 into a form that allows inhalation and deep penetration into the lungs where absorption into the bloodstream of the active substances occurs.Smoking can be dated to as early as 5000 BCE, and has been recorded in many different cultures across the world.Early smoking evolved in association with religious ceremonies; as offerings to deities, in cleansing rituals or to allow shamans and priests to alter their minds for purposes of divination or spiritual enlightenment.