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Google's self-driving cars will be tested on public roads in

April 27, 2018 by Katherine Berry

Google's self-driving cars will be tested on public roads in California, Texas and Michigan.A new research study suggests that smoking might protect us from the dangers of cancer.

This is the second study to show that the ability of smoking to decrease cancer risk in smokers is greater than that observed in smokers of non-smokers.

This study, published in the journal Cancer Research, shows that nicotine exposure increases risk for lung cancer by up to 50% and increases the risk of developing lung cancer by up to 50%.

This is a significant result and one that would have been difficult to replicate in a study that is currently conducted in an attempt to understand the role of smoking in cancer development.

According to Dr Paul B. K. Kostecki, a professor of medicine at the University of Toronto School of Medicine, one of the main reasons that tobacco use has been associated with increased cancer risk, is that it can lead smokers to do more to prevent their own cancers.

He says: "For many reasons, tobacco has come to appear as a promising form of cancer research. For many reasons, it's not a well understood, well-established form of cancer.

"But, although the risks of tobacco smoke vary widely, the evidence indicates that more smokers are exposed to the compounds that are associated with smoking.

"The use of tobacco in particular has been shown to increase cancer risk, but there are also several other possible mechanisms.

"These include changes in brain function, changes in brain metabolism and changes in body composition.

"We believe that smoking may cause cancer in humans as a result of interactions with other factors, including the changes in brain activity associated with smoking.

"We expect that smoking may result in certain alterations in the brain's structure, in particular brain tumour development and in the brain's metabolism.

"Our results suggest that the risk of lung cancer increases with exposure to the smoke-disrupting compounds that are associated with tobacco."