Hair testing provides a reliable history of drug or alcohol consumption, making a clear distinction between casual and sustained chronic use. As tests can be carried out on either head or body hair, samples can be taken from virtually any individual.
Randy Gregory has a problem with marijuana -- that's what the Dallas Cowboys defensive end tested positive for during his last drug test ... We're told Gregory -- who's currently serving a suspension for failing previous drug tests -- was tested again at the end of last week ... Our sources say Gregory was notified of the result on Tuesday -- and has been concerned that the Cowboys could get rid of him. Before this, Gregory had reportedly failed 5 NFL drug tests. One source close to Gregory tells us, "He has a problem quitting." We've reached out to Gregory's rep multiple times.
The International Tennis Federation questioned Errani’s eating habits between Feb.
14-15, specifically how the tortellini and broth were prepared.
Below are three ways you can pass a hair follicle drug test.
On average, it takes around 5-7 days for drugs to “get into” your hair.