What researchers have found is that individual hair follicles have different expression of genes within the follicle. Each gene expression reacts differently to androgen. Some genes inhibit follicle health and some increase follicle health. Since each follicle is independent of one another, each gene expression is also independent of one another. This is why hair transplants work. The follicles on your head might be dying, but the ones in other areas of your body are not, so doctors can simply move them. The transplanted hair follicle will not die because the genes associated with that follicle are not negatively affected by androgen, no matter what area of the body they’re in. Nothing like back hair on your head! The process that allows a specific gene to be expressed in a certain follicle isn’t yet understood. What is known is that the programming occurs in the pattern processing during development.
The number of players who have admitted using steroids in a confidential survey conducted by the NCAA since the 1980s has dropped from percent in 1989 to percent in 2003.  During the 2003 season, there were over 7,000 drug tests, with just 77 turning up as positive test results.  Scukanec claims that methods were used to get around the drug testing, whether it be avoiding the tests by using the drugs during the off-season, or flushing the drugs out of your system. This was used with a liquid he referred to as the "pink."  He stated:
Because of an editing error, an article on Monday about teenage boys and body image misstated the number of boys who were interviewed as part of a recently published survey. It was 1,307, not 2,800. The article also misidentified the academic affiliation of a doctor who commented on supplements and steroids. The doctor, Shalender Bhasin, is a professor of medicine at Boston University School of Medicine and chief of endocrinology, diabetes and nutrition at Boston Medical Center. He is not a professor at Boston Medical Center. And the article misidentified the nationality of the soccer player Cristiano Ronaldo, whose body a teenager quoted in the article said he would like to emulate. Mr. Ronaldo is Portuguese, not Brazilian.