Have you Ever Heard About Thirdhand Smoke?

Smoking

If you and your family members do not smoke it does not mean you are totally protected from tobacco smoke. Have you ever heard about thirdhand smoke?

A study demonstrated that thirdhand smoke is hazardous to people who are exposed to it. In the study the mice were exposed to tobacco smoke and scientists noted that this affected negatively their health.

Thirdhand smoke is a tobacco smoke that remains on surfaces for a long time after active smoking has stopped. The tobacco smoke can stick to furniture and other surfaces such as drapes, carpeting,  clothes and anything else that gets in its way.

According to the study, tobacco smoke becomes more toxic when it goes from firsthand to secondhand to thirdhand smoke.

Manuela Martins-Green, PhD, of the University of California Riverside, said that the first smoking ban in the world in all public spaces was adopted in 1990 in San Luis Obispo, California. After it was found that secondhand smoke is dangerous to people’s health, many countries worldwide began to adopt anti-smoking laws. Recently scientists found that thirdhand smoke exposure potentially presents similar health risks, especially for kids. A number of studies have confirmed that THS as an underappreciated public health hazard.

In order to understand better effects of thirdhand smoke, Martins-Green and peers studied mice raised in an environment that included objects previously exposed to secondhand smoke. Then mice were examined in order to find out how thirdhand smoke affected them. Scientists discovered that mice excreted high levels of the tobacco-specific carcinogen NNAI, comparable to levels observed in kids exposed to secondhand smoke. Besides this, mice exposed to thirdhand smoke exhibited hyperactivity.

The obtained results give a basis for future researches on the harmful effects of thirdhand smoke in humans. The authors asked to take the results into account and adopt much stricter anti-smoking policies.

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