But environments have changed too quickly for glacial evolution to catch up -- we live ill-equipped for this world and exist within an inherently imperfect human condition, the stuff of tragedy, comedy, and melodrama.
The first, of course, was "Super Size Me," the documentary in which the filmmaker Morgan Spurlock lived, to ill effect, on nothing but McDonald's fare for a month.
"That would mean more people living with ill health.
Three overarching themes will be presented: living with ill health, poor access to care, and unsatisfactory interactions with primary care.
Women described how they were living with ill health, which they found difficult to manage, and often impacted on their work.
Pakistan's "womb to tomb" army culture is markedly absent in India, with officers often put to pasture in the prime of their lives, ill-equipped to cope with civilian life's wheeling and dealing.
Over 8,000 of them, perhaps twice that number, many drug-addicted or mentally ill, live on the streets.
Living in ill-smelling darkness with lice and mosquitoes.
And Mozart's death, as one respected musical journal wrote, was almost certainly caused not by poison but by "arduous work and fast living among ill-chosen company".
Psychic Ills live in Brooklyn.
In "Ghost Waltz," Day talks about a younger son, Mark, who had "been ill at birth and stayed ill," living to the age of seven.
