"Statistics Canada data show that males at age 65 could expect to live an extra 19 years, and women an extra 22 years."

Correct....sort of.  What the data shows is that males age 65 ON AVERAGE could expect to live an extra 19 years.  This means that half of men age 65 will still be living at age 84 and at that point will STILL have and AVERAGE life expectation of another 7.6 years.  Also, what the tables show is that someone age 60 has a shorter AVERAGE life expectancy overall than someone age 65.  And someone age 65 has a shorter AVERAGE life expectancy than someone age 70.  Bottom line is that it's complicated!

I'm 67 (not collecting yet) and still working but likely to retire within the next year. I will most likely delay CPP and OAS until age 70 for two reasons.  First is because I can afford to wait.  Second is because I don't know anywhere else where you can get a guaranteed 8% return on an investment.