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Study IDs key protein for cell death, offers way to kill cancer cells by forcing them into programmed-death pathway

When cells suffer too much DNA damage, they are usually forced to undergo programmed cell death, or apoptosis. However, cancer cells often ignore these signals, flourishing even after chemotherapy drugs have ...

Genetics created May 14, 2013 | popularity 5 / 5 (9) | comments 0 | with audio podcast

Children of divorced parents more likely to start smoking

Both daughters and sons from divorced families are significantly more likely to initiate smoking in comparison to their peers from intact families, shows a new analysis of 19,000 Americans.

Health created Mar 14, 2013 | popularity 4.2 / 5 (5) | comments 1

Stimulating the brain blunts cigarette craving

Cigarette smoking is the leading cause of preventable deaths globally. Unfortunately smoking cessation is difficult, with more than 90% of attempts to quit resulting in relapse.

Psychology & Psychiatry created Apr 16, 2013 | popularity 5 / 5 (4) | comments 0

Women smokers who quit before 40 gain nine years in lifespan

Women can add nine years to their lives by quitting smoking before the age of 40 but still face a 20-percent higher death rate than those who never smoked, a study said Saturday.

Addiction created Oct 27, 2012 | popularity 3.6 / 5 (5) | comments 3

Violent video games: More playing time equals more aggression

(Medical Xpress)—A new study provides the first experimental evidence that the negative effects of playing violent video games can accumulate over time.

Psychology & Psychiatry created Dec 10, 2012 | popularity 3.2 / 5 (5) | comments 4 | with audio podcast

Judge orders tobacco companies to say they lied

(AP)—A federal judge on Tuesday ordered tobacco companies to publish corrective statements that say they lied about the dangers of smoking and that disclose smoking's health effects, including the death on average of 1,200 ...

Health created Nov 27, 2012 | popularity 5 / 5 (3) | comments 3

As cigarette taxes go up, heavy smoking goes down

(Medical Xpress)—When cigarette taxes rise, hard-core smokers are more likely than lighter smokers to cut back, according to new research from Washington University School of Medicine in St. Louis.

Health created Nov 30, 2012 | popularity 5 / 5 (3) | comments 0

Why are asthma rates higher among children now than in the past?

(Medical Xpress)—Doug Brugge, a professor of public health and community medicine at Tufts, assesses the possible reasons.

Inflammatory disorders created Nov 12, 2012 | popularity 4.7 / 5 (3) | comments 0

Weight and mortality: Researchers challenge results of obesity analysis

(Medical Xpress)—In January, when the Journal of the American Medical Association published a meta-analysis of 100 studies that probed the relationship between body mass index and mortality—studies that found slightl ...

Overweight and Obesity created Feb 25, 2013 | popularity 3.7 / 5 (3) | comments 0

Pot smoking linked to some metabolic changes

(HealthDay)—Regularly smoking pot is associated with visceral adiposity and adipose tissue insulin resistance, but not other metabolic changes such as impaired β-cell function or hepatic steatosis, according ...

Diabetes created Apr 19, 2013 | popularity 3.7 / 5 (3) | comments 2

Cannabis: Pill better than smoking for pain relief

Marijuana provides greater pain relief when taken in pill form than when it is smoked, according to a study published on Monday that touches on a controversial medical issue.

Psychology & Psychiatry created Apr 22, 2013 | popularity 3.7 / 5 (3) | comments 2

Research: Memory degraded by second-hand smoke

(Medical Xpress)—Non-smokers who live with or spend time with smokers are damaging their memory, according to new research from Northumbria University. 

Addiction created Sep 12, 2012 | popularity 5 / 5 (2) | comments 0

Smoking may lead to cataracts in aging population

Cigarette smoking is a well-known risk factor for a wide-range of diseases. Now, scientists have evidence that smoking may also increase the risk of age-related cataract, the leading cause of blindness and vision loss in ...

Ophthalmology created Oct 12, 2012 | popularity 5 / 5 (2) | comments 1

CAMH protein discovery may lead to new treatment to prevent smoking relapse

Scientists at the Centre for Addiction and Mental Health (CAMH) have identified a potential new approach to preventing smoking relapse, which occurs frequently in smokers who attempt to quit, despite current treatments.

Health created Oct 22, 2012 | popularity 5 / 5 (2) | comments 0

Industry now using smartphone apps, which kids can easily download, to promote tobacco

The tobacco industry is now using smarphone apps - a medium that has global reach, including to children - to promote its products, warn researchers in Tobacco Control.

Addiction created Oct 22, 2012 | popularity 5 / 5 (2) | comments 0

Smoking

Smoking is a practice where a substance, most commonly tobacco, is burned and the smoke tasted or inhaled. This is primarily practised as a route of administration for recreational drug use, as combustion releases the active substances in drugs such as nicotine and makes them available for absorption through the lungs. It can also be done as a part of rituals, to induce trances and spiritual enlightenment. The most common method of smoking today is through cigarettes, primarily industrially manufactured but also hand-rolled from loose tobacco and rolling paper. Other smoking tools includes pipes, cigars, hookahs and bongs.

Smoking is one of the most common forms of recreational drug use. Tobacco smoking is today by far the most popular form of smoking and is practiced by over one billion people in the majority of all human societies. Less common drugs for smoking include cannabis and opium. Most drugs that are smoked are considered to be addictive. Some of the substances are classified as hard narcotics, like heroin and crack cocaine, but the use of these is very limited as they are often not commercially available.

The history of smoking can be dated to as early as 5000 BC, 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. After the European exploration and conquest of the Americas, the practice of smoking tobacco quickly spread to the rest of the world. In regions like India and Subsaharan Africa, it merged with existing practices of smoking (mostly of cannabis). 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. Only recently, and primarily in industrialized Western countries, has smoking come to be viewed in a decidedly negative light. Today medical studies have proven that smoking tobacco is among the leading causes of many diseases such as lung cancer, heart attacks and can also lead to birth defects. The well-proven health hazards of smoking have caused many countries to institute high taxes on tobacco products and anti-smoking campaigns are launched every year in an attempt to curb tobacco smoking.

For more information about Smoking, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.