Third-Hand Smoke Can Damage One’s Respiratory System

Third-Hand Smoke Can Damage One’s Respiratory System

Third-hand smoke (THS) may harm a person’s respiratory health by altering the gene expressions, say the researchers in a new study.

The study reveals that THS can damage the epithelial cells present in our respiratory system, pressurising these cells into a battle for survival, reported news agency Xinhua.

THS occurs when the smoke coming from burning cigarette and exhaled smoke settle down on surfaces such as hair, clothing as well as furniture.

For the study, the researchers at University of California, Riverside (UCR) gathered nasal scrapes of 4 healthy, non-smoking women between 27 and 49 years in order to analyse their gene expression alterations. The participants were first asked to receive clean-air exposure and later THS exposure for about 3 hours before the researchers obtained Ribonucleic Acid from them.

The findings of the study showed that out of 10,000 genes, 382 genes were vitally over expressed while 7 other genes remained under expressed. Moreover, the researchers also discovered that the inhalation changed pathways linked with oxidative stress which might cause cancer in the long run.

Nasal membrane tissue and bronchus are quite similar, which is the reason why the researchers recommend that the damage might penetrate deeper in the respiratory system.


After being a professional journalist for 5 years and understanding the ups and downs of health care sector all over the world, Rahul shifted his focus to the digital world. Today, he works as a contributor for Your Health Support with a knack for covering general health news in the best possible format.

Leave a Reply

Your e-mail address will not be published. Required fields are marked *

All the data shown above will be stored by Your Health Support on At any point of time, you can contact us and select the data you wish to anonymise or delete so it cannot be linked to your email address any longer. When your data is anonymised or deleted, you will receive an email confirmation. We also use cookies and/or similar technologies to analyse customer behaviour, administer the website, track users' movements, and to collect information about users. This is done in order to personalise and enhance your experience with us. Click here to read our Cookie Policy.