what smoking cigarettes does to your lungs The Dangers of – Healthy Savannah What happens to your lungs

Note that this applies only to adults, not adolescents

A significant body of research suggests that marijuana users might experience some level of impairment in their ability to learn new information or recall past events

In each setting, we endeavored to recruit schools with a range of deprivation levels and mixed-gender

Surgeon Generals Report, 2016)

Low frequency repetitive transcranial magnetic stimulation of the left dorsolateral prefrontal cortex transiently increases cue-induced craving for methamphetamine: A preliminary study

For the number of days cannabis was used in the year, we asked During the last 12 months, on how many days have you used cannabis