"The corollary of this is that building muscle, which requires eating a lot, is inferior to being a skinny rake for longevity alone."
Not true. Stronger people are less likely to die. Strength reduces your risk of death from all causes - and cancer in particular.
"[The inverse relationship between] muscular strength and death from all causes and cancer persisted after further adjustment for cardiorespiratory fitness; however, the association between muscular strength and death from cardiovascular disease was attenuated after further adjustment for cardiorespiratory fitness."
Not true. Stronger people are less likely to die. Strength reduces your risk of death from all causes - and cancer in particular.
"[The inverse relationship between] muscular strength and death from all causes and cancer persisted after further adjustment for cardiorespiratory fitness; however, the association between muscular strength and death from cardiovascular disease was attenuated after further adjustment for cardiorespiratory fitness."
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2453303/