The harm of using e-cigarettes in combination with other tobacco products mainly lies in the doubling of health risks, including impaired heart and lung function, increased risk of cancer, aggravated nicotine dependence, rising risk of diabetes and osteoporosis, etc. The following is a specific analysis:
Impaired heart and lung function: Both e-cigarettes and traditional cigarettes contain nicotine and other harmful substances. Their combined use may cause impaired heart and lung function and increase the risk of heart disease, chronic obstructive pulmonary disease, and other conditions. Studies show that mixed users are nearly twice as likely to have respiratory symptoms as pure e-cigarette users and more than 1.2 times as likely as pure tobacco smokers.
Increased cancer risk: Harmful substances in cigarettes such as tar and carbon monoxide are known carcinogens, while e-cigarettes, although without a combustion process, also contain carcinogens such as formaldehyde and heavy metals. Studies have found that people who use both e-cigarettes and cigarettes at the same time have a four times higher probability of developing lung cancer than those who only use cigarettes.
Increased nicotine dependence: Mixed use may lead to an increase in nicotine intake, thereby intensifying nicotine dependence and making it more difficult to quit smoking.
Increased risk of diabetes: The combined use of e-cigarettes and traditional cigarettes increases the risk of insulin resistance, which may in turn increase the risk of type 2 diabetes. Studies have found that the risk of insulin resistance in double smokers doubles.
Osteoporosis risk: Smoking itself can lead to osteoporosis. The combined use of e-cigarettes and traditional cigarettes may further increase the prevalence of brittle fractures. Nicotine can inhibit the proliferation of osteoblasts, enhance the function of osteoclasts, and lead to a decrease in bone mass.