10 Studies have not been carried out to resolve many of these concerns (LactMed, 2023)
The following factors were included as covariates for potential confounders or risk factors: sex (male or female), grade (7th, 8th, 9th, 10th, 11th, or 12th), academic performance (high, middle, or low), area of residence (metropolitan, urban, or rural), residence type (living with or without family), economic status (high, middle, or low), subjective health condition (healthy, normal, or unhealthy), physical activity over 1 h and five times per week (yes or no), drinking experience (yes or no), smoking status (never, ex-smoker, or current smoker), sleep satisfaction (satisfied, regular, or unsatisfied), stress perception (high, middle, or low), depressive symptoms in the past 12 months (yes or no), and year (2020, 2021, 2022, or 2023)
In deciding whether or not you should be screened for lung cancer, one of the measures we use is called a Pack Year
Secondhand cannabis smoke may be more dangerous than directly inhaled smoke: Secondhand cannabis smoke contains a lot of the same toxins and carcinogens as directly inhaled smoke and may even contain more
Why do you eat more when you quit smoking