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does cigarettes thin your blood Smoking Constrict Vessels? Smoking & Your Vein Health
Description
Participants were considered to have bronchitic symptoms if they reported any of the following: bronchitis in the previous 12 months

CARCINOGEN BIOMARKERS Quantifiable substances such as carcinogenDNA adducts, carcinogenprotein adducts and urinary metabolites of carcinogens, which are derived from specific carcinogens
[4]Olloquequi, Jordi, et.al

Tobacco Control, 2023

Toxic Ingredients Video of the Day Tobacco contains heavy metals and other chemicals, which can poison creatures that eat discarded tobacco cigarette stubs

The short answer is yes, but there's some important context
