*I think it is scaremongering to quote statistics about life expectancies of 18 months after retiring at 65 or whatever, especially when so many people will not be eligible for their state pension before the age of 67!
Genes, nutrition, lifestyle, socio-economic background, and yes, dammit, LUCK play a far greater part. (Actually quite cross about generalisations, spurious patterns or prophecies of doom.
We will all die sometime, let's not agonise over additional contributory factors.*
I call it having something to work on, to yes, even decide to retire earlier if possible and prudent.