The epidemiological link between red meat and cancer is no longer debatable – what remains uncertain is how exactly this happens, and why the human species appears to be unique in its susceptibility.
Heart disease is the number one human killer, but most other members of the animal kingdom are much less susceptible to it than we are. What is it about other animals that has allows them to dodge this epidemic while we humans suffer? Linus Pauling thought Vitamin C was the answer; Robert Sapolsky has pinned the blame on stress. But what theory do you believe?
We have been handed a dying Earth – a mysterious object of concern. We look at it despairingly, not quite sure what to be concerned about, nor to what degree concern is required. We are full of information (and misinformation), yet we feel empty of knowledge, and this paralyses us. It is tempting to turn our eyes away and bury our heads as the planet burns – after all, humans have been doing it for years, as though it were a dream.