In extremely basic terms, the test works because blood flow feeds the growth of your hair and your hair is always growing so whenever there are drugs in your blood, the metabolites get trapped in the hair. When performing the test, they cut your hair at the scalp and use the shortest inch and a half or less for testing (which is about 90 days' growth). So apparently they can test for drugs farther back if they wanted to if you have long enough hair. It will take five to 7 days for your hair to grow long enough to be tested. The only possible way to get out of this I can think of is to wax off all your body hair (eyebrows, pubes, ass hair, etc.) so they can’t get a sample. They’ll probably be wise to your trick and not give the job to your nekked mole rat–looking ass but, hey, it’s worth a shot if you want the job bad enough. Tell them you’re a big swimmer. It would at least be hilarious.
Not shortly after Roger Maris record was broken, another baseball player, Jason Giambi and various other athletes were either suspected of, or proven to have, taken anabolic steroids. Again, Congress convened a hearing, and just as they did the first time in 1990, they did not determine that steroids were a danger, but rather that the danger was more in protecting professional sports organizations. The updated statute has been updated to proscribe pro-hormones also The definition of an anabolic steroid as defined currently in the United States under (41)(A) is that "anabolic steroid" means any drug or hormonal substance, chemically and pharmacologically related to testosterone (other than estrogens , progestins, corticosteroids, and dehydroepiandrosterone (7).