Tetrahydrocannabinol
THC is very fatty (fat soluble) and binds to fat cells in our body and causes it to leave the body slowly, even if the effects of the drug or high has already ended. The amount still in the body depends on how often THC is used. The minimum time for a person to pass a drug test would be about 1 week. It is not possible for humans or animals to realistically die from taking too much THC or marijuana and no person has ever died from it.