Caffeines Effects on the Body Caffeine has many effects on your bodys metabolism
For the primary outcome we conducted three pre-specified sensitivity analyses: a per-protocol analysis that excluded participants who did not start product use or never established contact with the study team, an analysis in which we estimated missing data using multiple imputation by chained equation, and an analysis in which we excluded abstinent participants who used non-allocated products (that is, e-cigarettes in the NRT arm and NRT in the e-cigarette arm) for at least 5 consecutive days during the 4 weeks after the TQD or who reported end of pregnancy current use or regular use for at least 1 week or occasional use for at least 3 weeks
Since pre- and post-menopausal data were only available for certain time periods (NHANES 20052010), further research was needed to explore the effects of smoking status and serum cotinine on the risk of kidney stones in pre- and post-menopausal women
April-June 2026 - Rising regulatory shifts and consolidation in the tobacco industry Companies such as Altria Group, Scandinavian Tobacco Group, Reynolds American Inc., and China National Tobacco Corporation continued strategic restructuring, cost optimization, and investment in alternative nicotine products amid tightening global regulations