It might help to take things in context. Rush was extrapolating on a series of articles by Atlantic Monthly columnist Megan McArdle relating to her experiences with hypertension and her baffling discussions with her doctor. Then she did some of her own research and reached the conclusions (for herself anyway) in the main article and then in a small follow-up that got Rush thinking about the subject in his own inimitable way.
There's a lot of truth to the saying that "you cannot cure old age". I think that's all Rush is saying.
Following is the two articles by Ms. McArdle, preceded by the transcript of the Rush Show that Villages PL is opining on.
http://www.rushlimbaugh.com/daily/20..._don_t_get_old
http://www.theatlantic.com/health/ar...t-sick/251184/
http://www.theatlantic.com/health/ar...et-old/251193/