Farmers would eat half a slab of bacon and 3-6 fried eggs and wash it down with half a pot of coffee or whole milk before going to work in the fields. Many of them were still on the same routine well into their 70s and early 80s.
You remind me that I need to roast a tray of bacon. I do a half-sheet pan with a parchment sheet in the bottom to catch the grease, then a baking rack with ~10 slices on it. ~25 minutes at 425F for the thick-sliced stuff I buy. 1-3 times a week, with me and my wife.
A member of our family lived to 109. Every morning he had 2 fried eggs, 6 slices of bacon, 3 biscuits and 3 cups of Luzianne Chickory and Coffee.
He also walked 4 miles a day until he was 102. He was still walking 1/4 mile every day until a week before he died.
The day he died he had his usual breakfast.