Here’s How Long a Cannabis High Really Lasts, According to Science – ScienceAlert

If you ask 50 different people how long the effects of cannabis last, you’re likely to get 50 different answers. This can be a problem for figuring out how long a patient using the drug for medical purposes is going to remain impaired.
A new meta-analysis of 80 papers has narrowed down this timeframe. Depending on factors such as how the cannabis is consumed and how strong it is, the user can remain impaired for between three and 10 hours.
This information can help inform advisory information given…

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