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Marijuana Effects

How Long Does MARIJUANA Stay in Your System?

The quick answer is 12 weeks for heavy users, three weeks for light users. Tetrahydrocannabinol, commonly known as THC, is the active “get high” chemical in marijuana. THC is fat-soluble, and it builds-up in the organs, skin, and other fatty tissues of the body. There are many factors in how long THC stays in your system and inherent variables in the methodologies to remove the toxins:

Size and weight of person
Fitness level and BMI (body mass index)
Frequency and amount of drug(s) used
Hydration levels and kidney function
Diet: high or low fat, fiber intake