What does “Half-life” mean?
The time taken for the amount of a drug in the body to fall by half.
Half-life in plain English
The time taken for the amount of a drug in the body to fall by half.
Cannabinoids are fat-soluble and accumulate in body tissue with repeated use, which gives THC a long and variable terminal half-life — a major reason it remains detectable in urine testing for weeks after regular use.
A long half-life does not mean a long duration of effect. The effects wear off well before the substance has cleared.
Frequently asked questions
What does half-life mean?
The time taken for the amount of a drug in the body to fall by half.
Sources and further reading
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