Terry Bradshaw -- Good Genes or Good Docs?

Terry Bradshaw's good looks are legendary!

Here's a 24-year-old version of the NFL Hall Of Fame player on the sidelines before a game back in 1972 (left) and 46 years later ... The quarterback turned sports analyst -- Who recently celebrated his 70th birthday -- speaking on a radio show earlier this year (right).

Going long!

The question is ...