Humanity has been repressed
The original 12 strand DNA reduced to a two strand DNA helix.
Bodies had no disease or disability.
The aging process ended at what you now consider your prime of life, thirty or so years.
Brain power was fully used and so were all innate capacities.
People communicated telepathically with the natural kingdom.
Manifested whatever they desired.
Traveled at the speed of thought and soul level knowledge reached consciousness.
Because people were healthy in body, mind, and spirit, they could live for thousands of years if they wished before moving on to higher levels of self discovery.