How Long Marijuana Stays in System

There are 3 main factors in determining how long marijuana will stay in your system

These are:

The amount of marijuana used:

A first time pot user, will have weed detectable in the body for a period up to 7 days. A casual marijuana smoker (2-3 times a week); thc can be detectable for a period up to 21 days. Chronic weed smokers can expect to test positive for thc toxins for up to 90 days.

The person’s metabolic rate:

A metabolic rate is the rate at which a person’s body run. A person with a faster metabolic rate will have a shorter detectable time for thc than a person with a slower rate. This being said, a person who smoked pot recently and has a fast metabolic rate will excrete larger amounts of thc than a person with a slower metabolic rate. The metabolic rate ties in with the next factor in determining how long marijuana stays in your system:
Which is body fat percentage.

Body fate percentage is critical to determine how long thc will stay in your system. THC is stored in the fat cells in your body. So the more fat cells that you have the more storage space you have for marijuana.