As long as your on it
30 days .
once in brain it stay there
about 30 days
For as long as it stays in yours.
Probably a week or 2. THC can stay in your body for up to 28 days if you use it almost daily.
THC stays in your spit for 24h. Or max. 3 days.
It is very unlikely casual exposure to cannabis smoke will cause THC to be transferred to the blood.
THC is supposed to stay in your system for 30 days. Give or take a few based on your metabolism. But I have heard people say that it can stay in your hair for years. I guess it depends on how long you have smoked and how often.
Thc can be detected in the saliva for 5 to 10 days depending if you are a heavy user.
Depending on how much your intake of THC is. If your intake of THC is a couple times a week it will stay for about 3-4 weeks. If you only smoked once it would stay in your system for 48 hours.
Up to 30 days.