Smokers sleep badly due to nicotine itself. According to the National Sleep Foundation, insomnia can be caused by many psychic and physical factors, as well as by lifestyle habits. Nicotine is certainly a powerful stimulant, which makes smokers more prone to suffer from insomnia.
The problem is even more evident among women over 50. In addition to insomnia, smoking causes poor sleep. Ever new research shows, one after the other, how much the cigarette and its components are extremely harmful to the whole body, and not just to the lungs.
Pediatric Academic Societies showed, for example, said that children who grow up in smoking families have a high risk of hospitalization. And then the risk of cancer, of course: 85 percent of all lung cancer cases depend on smoking.
The bad impact of cigarette smoking on sleep
A study entitled Assessing the effect of nicotine dose in cigarette smoking on sleep quality, published on the Sleep & breathing = Schlaf & Atmung, tells us about this harmful reaction.
In the article we can read: "This study aimed to compare higher vs lower nicotine levels in cigarette smoking on sleep quality. We used data from the recently released dataset for the Randomized Trial of Reduced-Nicotine Standards for Cigarettes.
We included three groups in the current study: the least nicotine concentration (i.e., 0.4 mg/g), a moderate nicotine concentration (i.e., 5.2 mg/g), and the highest nicotine concentration (i.e., 15.8 mg/g). For each participant, we included data regarding baseline and the last follow up at 6 weeks, where we compared insomnia, sleep problems, and awakening at night, in addition to different depression and affect scores.
A total of 360 patients were included in this study, with a mean age of 42.4 (±13.4) years. For the three nicotine groups (i.e., 0.4 mg/g, 5.2 mg/g, and 15.8 mg/g), we included 119 (33%), 122 (34%), and 119 (33%) participants.
Among the high-nicotine-dose group, the number of participants who had worsened sleep was significantly higher than the number of those who had improved sleep (p = 0.01) after 6 weeks of consumption, where 37 (31%) had worsened sleep score after 6 weeks while only 19 (16%) had improved score compared with baseline.
While previous studies established a relation either between cigarette smoking and sleep or between nicotine patches and sleep, the present study is the first to establish that higher nicotine doses in cigarettes were associated with more sleep disturbances."