There is a possible evolutionary role, with an aspherical femoral head affording upright humans better stability. We set out to identify the antiquity of the cam deformity to better understand the comparative roles of modern behavior and evolution in its development.
To figure out if you are âcleanâ for a drug test and how to get weed out of your system, you need to be able to determine the following: 1  The amount of THC and its metabolites in your system. 2  The type of test youâll be required to take. 3  The testing levels for your drug screen.
Some THC metabolites have an elimination half-life of 20 hours. However, some are stored in body fat and have an elimination half-life of 10 to 13 days. Most researchers agree that urine tests for marijuana can detect the drug in the body for up to 13 days. However, there is anecdotal evidence that the length of time that marijuana remains in the body is affected by how often the person smokes, how much he smokes and how long he has been smoking.