Among adolescents, marijuana use can have negative effects on their cognitive and mental health
The likelihood of developing a respiratory disorder increases in long-term cannabis smokers
Blunts are more than just a way to consume cannabis
35 5.7.2 Smoking behaviour of siblings While research in this area can be difficult as it is challenging to successfully control for the range of shared characteristics affecting siblings, such as common family backgrounds, neighbourhoods, schools, and genes, which could potentially account for most of the observed correlations, 36 many studies have nonetheless found that living in a family with older brothers or sisters who smoke influences adolescent uptake of smoking, 1,24,25,37,38 with some research suggesting that it may be a more important predictor of uptake of smoking than parental smoking status
(1931) A history of smoking (Bracken 1996 reprint
Some of the charts shown above reflect HYS data analysis by the WA State Department of Health