Sober living

How long does weed stay in your system? What to know about drug tests

After use, cannabinoids reach the hair follicles via small blood vessels and from sebum and sweat surrounding the hair shaft. Drug tests for cannabis measure THC and its by-products or metabolites. These metabolites remain in your system long after weed’s effects have worn off. You can usually feel the effects of edibles within 30 to …

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