E-cigarettes contain toxic chemicals which could damage the lungs and immune system, scientists have discovered.
Experiments carried out on mice found e-cigarette fumes harmed the animals’ lungs and made them more susceptible to respiratory infections.
Chemicals generated by the nicotine devices also weakened the immune system’s response to viruses and bacteria, causing some mice to die.
Researchers found e-cigarette vapour contains “free radical” toxins similar to those found in air pollution and cigarette smoke.
Although the study said they generated just 1% of the amount of free radicals in tobacco smoke, these molecules can damage DNA and cell membranes.
The study was carried out by scientists at John Hopkins University in Baltimore.
Professor Shyam Biswai said: “Our findings suggest that e-cigarettes are not neutral in terms of the effects on the lungs… see more