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The pack-year is a unit for measuring the amount a person has smoked over a long period of time. It is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person has smoked. For example, 1 pack-year is equal to smoking 20 cigarettes (1 pack) per day for 1 year, or 40 cigarettes per day for half ...
The smoking of food likely dates back to the paleolithic era. [7] [8] As simple dwellings lacked chimneys, these structures would probably have become very smoky.It is supposed that early humans would hang meat up to dry and out of the way of pests, thus accidentally becoming aware that meat that was stored in smoky areas acquired a different flavor, and was better preserved than meat that ...
On 1 December 2012, Australia introduced ground-breaking legislation and the world's toughest tobacco packaging warning messages to date. [15] All marketing and brand devices were removed from the package and replaced with warnings, only the name of the product remains in generic standard sized text.
In the United States, smoker protection laws are state statutes that prevent employers from discriminating against employees for using tobacco products. Currently twenty-nine states and the District of Columbia have such laws. Although laws vary from state to state, employers are generally prohibited from either refusing to hire or firing an ...
Tar is the name for the resinous, combusted particulate matter made by the burning of tobacco and other plant material in the act of smoking. Tar is toxic and damages the smoker's lungs over time through various biochemical and mechanical processes. [1]
Smoke inhalation is the breathing in of harmful fumes (produced as by-products of combusting substances) through the respiratory tract. [1] This can cause smoke inhalation injury (subtype of acute inhalation injury) which is damage to the respiratory tract caused by chemical and/or heat exposure, as well as possible systemic toxicity after smoke inhalation.
Declines in daily smoking prevalence occurred for both sexes and all age groups over the entire 17-year time span, although youth smoking did not start significantly declining until the mid-1990s. Overall, for daily cigarette consumption, smokers by 2001 had a significantly lower proportion of smoking 26 or more cigarettes daily compared with ...
Smoking is the direct cause of the greatest number of preventable deaths in Australia, [26] with a death toll of 15,500 every year. [27] Smoking has a causative association with a myriad of other types of diseases, such as heart disease, diabetes, stroke and different forms of cancers.