Research shows that people with these conditions account for nearly 40% of all cigarettes consumed in the U.S., despite representing a much smaller share of the population. Population-based studies, including a major Norwegian survey, have found that individuals with symptoms of anxiety and depression are significantly more likely to be current smokers compared to those without these symptoms. This association is particularly concerning because individuals with depression or anxiety often smoke more heavily and are more likely to become nicotine dependent. Additionally, the co-occurrence of both conditions has been found to strengthen the association with tobacco use, suggesting a compounding effect. The relationship between tobacco use and emotional distress is commonly explained by the self-medication hypothesis
All these lead to a less than perfect result
"The potency of THC was only about three per cent in the 1980s and today, according to Health Canada, the average is 15 per cent with some strains as high as 30 per cent," Seabrook said, citing Health Canada numbers for "fresh or dried herb material." "So we're talking a 400 per cent or higher increase in the potency." For "chemically concentrated extracts," such as hash oil, shatter, budder and wax, the typical potency can be up to 90 per cent, according to Health Canada data
Canine detection capabilities: Although many airports have shifted drug-detection dog programs away from marijuana (focusing exclusively on explosives in some locations), dual-purpose dogs trained for both explosives and narcotics still operate in many facilities
