Secondhand smoke exposure before birth may affect lungs into adulthood

Medical News Today, 29 June 2017
Author: Catharine Paddock
“Secondhand smoke is that produced by the burning of tobacco products such as cigars, cigarettes, and pipes that can be inhaled by people nearby. Breathing in secondhand smoke is also known as passive smoking. Smoke that is exhaled by someone who is smoking is also classed as secondhand smoke. Hundreds of the 7,000 chemicals in tobacco smoke are toxic – that is, they cause some degree of harm to the body. These include 70 that can cause cancer. Adult susceptibility to lung diseases may depend on prenatal exposure to secondhand smoke.”
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