tobacco use map File:World of countries by number of cigarettes smoked per adult per year.svg Europe tops global smoking rates,

The half-life of cotinine is approximately 16-19 hours, meaning it can take several days for cotinine to be eliminated from the body entirely

The study, led by Dr Chiara Herzog and published in Cancer Research , analysed the epigenetic effects of tobacco and e-cigarettes on DNA methylation on cells that are directly exposed to tobacco, such as the cells lining the cheek, and those that are not directly exposed, including blood and cervical cells

Nature, we believe, takes forever

Despite this overall decline, the deep-discount segment was the only brand tier to show growth between 2016 and 2024, as price-sensitive consumers shifted away from premium brands to maintain their habits under economic pressure 2