The same for people with a higher metabolism speed. The more regularly you exercise, the faster you can release THC from the fat cells into the bloodstream. Metabolic Speed and Physical ActivityĪ study conducted by the University of Sydney in 2006 revealed that exercise prompts the body to go into lipolysis (fat breakdown) and release THC stored in fat cells. It so follows that people with more body fat percentage will store THC for longer and will take a longer time to excrete. Once the THC levels in the blood decrease, the fat cells release the THC that they are holding.Ī person with a higher fat percentage will have a prolonged rate of excretion of THC because they have more fat cells holding on to THC and its metabolites.įor fat to be released from the fat cells, it has to be broken down. From the bloodstream, the THC is distributed into other organs and fat. THC is lipophilic, meaning that it binds to fat. In an older person, the half-life is prolonged and may take up to 120 hours, depending on the exact age and other factors. The half-life of THC in a healthy adult is between 28 hours to 36 hours. In a nutshell, the THC half-life of an older person is significantly increased sometimes, it can be as great as a fourfold increase. These changes affect how fast THC metabolites can be excreted from the body.

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