And even further at times

Well, Biblically speaking it was hundreds of years, right? LOL

OK - I have seen your point before. While by and large much of the world has plenty of food to eat, and that helps, we nevertheless are not eating the right things, especially not in industrialized, over processed, fast food western society.

Increases in lifespan have occurred IN SPITE of what we consume. That is primarily due to advances in hygiene (washing, sterilizing, pasteurization, etc.) and advances in medicine insofar as treating physical injuries in a sterile environment.

To quote Dr. Mercola:

"Hunters and gatherers derived most of their calories from about 100-200 different species of wild animal fruits and vegetables. But with the advent of agriculture man became dependent upon a few staple cereal foods, 3-5 domesticated meat species, and 15-20 other plant foods. Many populations got up to 80 percent of their calories from a single cereal staple.

This was the turning point in human evolution. We abandoned the typical hunter-gatherer lifestyle, with its dependence on wild meat, fruits, vegetables, and nuts and took up dietary and activity patterns that were entirely new to us. We had evolved to adapt to the life of hunters and gatherers and now accepted a life that was incompatible with our adaptive qualities. The consequences were evident in a reduction in body size, from which we have only recently recovered, and in the appearance of diseases of sedentary and agricultural populations, such as cardiovascular disease, cancers, diabetes, high blood pressure, and bone diseases."

I may not always agree with Mercola, but in many, many instances he has accurate information that is spot on.