Detailed text transcripts for TV channel - MSNBC - 20151228:21:58:00
>> for more on the drug at the center of the case, hgh, i'm joined by dr. don caff ngnaw. for folks not familiar with the drug, what is it, what does it allow athletes to do? >> hgh is a protein that everybody listening and watching has in their body today. it's made in a gland called the pittutary gland in the center of the brain. and it's released into the blood stream, travels around the body, to every bone and tissue and sits on receptors in those tissues and makes them homio statically solid and pure and helpful for life. >> if you were a professional athlete and you had just had