How long is it believed that marijuana may stay in the body?

The correct answer indicates that marijuana may remain detectable in the body for approximately 3 weeks. This duration is often associated with the metabolism and storage of THC (tetrahydrocannabinol), the psychoactive component of marijuana, which can accumulate in body fat and be released gradually into the bloodstream over time.

The 3-week timeframe takes into account several factors, including the frequency of use, individual metabolism, body composition, and the type of drug test being conducted. For example, occasional users might clear THC from their system more quickly than those who use marijuana regularly. Moreover, urine tests, which are commonly used to detect marijuana use, can return positive results for several weeks after last use due to the way THC is stored in fat cells. This is especially pertinent for heavy users, as traces of the substance can linger for an extended period.

The other durations mentioned may be considered shorter than what is typically observed for regular or heavy users, which is why they do not represent the consensus about how long marijuana can be detectable in the body.