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The health effects of long-term nicotine use is unknown. [18] It may be decades before the long-term health effects of nicotine e-cigarette aerosol ( vapor ) inhalation is known. [ 19 ] Short-term nicotine use excites the autonomic ganglia nerves and autonomic nerves , but chronic use seems to induce negative effects on endothelial cells . [ 20 ]
As of 2015, the long-term lung function effects of vaping were unknown. [135] [81]: 12 A 2014 study reported that limited evidence suggests that e-cigarettes produce less short-term effects on lung function than traditional cigarettes. [136] As of 2015 many e-liquid ingredients had not been examined in the lung. [106]
Although some evidence indicates that e-cigarettes are less addictive than smoking, with slower nicotine absorption rates, [13] [14] long-term e-cigarette safety remains uncertain. [15] [16] One issue is the need to separate the effects of vaping from the effects of smoking among users who both vape and smoke. [note 4] [17]
Vaping rates in middle school are on a slightly different trajectory CDC data also shows that vaping among middle schoolers has climbed from 3.3% in 2022 to 4.6% in 2023.
Youth vaping levels fell to the lowest in a decade this year, according to a new CDC and FDA report. Rates are one-third of the 2019 peak.
Some 39% of adolescents surveyed said they hand tried e-cigarettes compared with 32% who had tried smoking.
This phenomenon is also known as vaping but has many other names as well. [40] In 2020, it was estimated that approximately 1.3 million children in the United States smoke. [41] For the first time in 2014, e-cigarette use was higher among adolescents than smoking traditional cigarettes.
Vaping has slightly declined among teens. The use of e-cigarettes among high schoolers decreased from 14.1% to 10% from 2022 to 2023, the 2023 National Youth Tobacco Survey found.