Nature of Paradise

Our brain was big and complex for about 1 million years before we actually started to use it for complex actions and thoughts (tools, burial rites, social structures). Is that epoch the Paradise referred to in the Genesis? Is the apple the consciousness? Or the civilisation?
Paradise lost because consciousness gained?
Paradise lost because civilisation gained?
What about 'uncivilised' tribes? Do they die of stress, of fears? Do they hate their neighbours an does this stop them from sleeping? Are they as afraid of failing to hunt pray as we are of social failure? How afraid are they of disease and death?
In becoming civilised, we have lost the connection with Nature that they had. We have gained civilisation and consciousness instead. Fears of Nature have transformed into fears of civilisation. Have we advanced, or just shifted?