what is a half smoked cigarette called The front and back of two packaging in circulation in Roll-your-own cigarette - Wikipedia

Cigarette smoke contains cancer-causing agents and chemicals that cause heart (cardiovascular) and lung (pulmonary and respiratory) diseases and contribute to poor reproductive and dental health

120: 11969 Pazderka Smith E, Taylor TB, Meyer LJ, et al

Lung Cancer Risk There is obvious concern for cannabis smoking to increase lung cancer risk, as tobacco smoking is the major cause of lung cancer [45], and marijuana and tobacco smoke both contain many of the potent carcinogens [46]

Therefore, smokers on these medicines who reduce or eliminate their tobacco consumption can expect to be prescribed lower doses

Diacetyl in Foods: a Review of Safety and Sensory Characteristics