Holy Grail For The Drug Industry
The New York Times tells us that "if the drug industry has a commercial Holy Grail, it might be an anti-aging pill, one that would let you live longer and prolong your youthful vigor." The article spends some time on the difficulty of measuring anti-aging effectiveness - this is, as is noted, "a bear of a problem." Determining the effectiveness of therapies is vital to the process of developing and commercializing new medicine. This topic was brought up in an article at SAGE Crossroads fairly recently as well, and you'll find more information there.
Link: http://www.nytimes.com/2003/11/09/weekinreview/09KOLA.html?ex=1069394807&ei=1&en=f7548a17fff2fbe7