Cannabis

Smoking 9: From the heart through the body

The oxygenated blood containing the THC is pumped by the heart to the rest of the body via the aorta.

Some of the THC molecules disappear from the blood along the way. Because THC is highly fat-soluble, the molecules easily seep through the blood vessel walls and nestle into the nearby fatty tissues. The molecules will be released from the tissues only gradually. Seven days later, only 60 to 70 percent of the THC has been eliminated from the body.