Tetrahydrocannabinol, or THC, is the active ingredient in marijuana that causes a high. It attaches to cannabinoid receptors all over the body and creates feelings of euphoria by changing how sensory information gets into and is processed by your brain. Besides creating this “high,” THC affects memory, thought processing, attention span, and motivation.
THC is detectable in the blood for up to two weeks after use, and it can be detected in urine for up to a month. However, there are ways to detox from marijuana that can help you get THC out of your system faster.