By Sara Burrows
Depression is not a natural disease. It’s a disease caused by our high-stress, industrialized lifestyle, psychologist argues.
Depression is a global epidemic. It is the main driver behind suicide, which now claims more than a million lives per year worldwide. One in four Americans will suffer from clinical depression within their lifetimes, and the rate is increasing with every generation.
It robs people of sleep, energy, focus, memory, sex drive and their basic ability to experience the pleasures of life, says psychology professor and author of The Depression Cure Stephen Ildari. It can destroy people’s desire to love, work, play and even their will to live. If left unchecked it can cause permanent brain damage.
Depression lights up the pain circuitry of the brain to such an extent that many of Ildari’s psychiatric patients have called it torment, agony and torture. “Many begin to look to death as a welcome means of escape,” he said in a Ted Talks presentation.
But depression is not a natural disease. It is not an inevitable part of being human. Ildari argues, like many diseases, depression is a disease of civilization. It’s a disease caused by a high-stress, industrialized, modern lifestyle that is incompatible with our genetic evolution.
Depression is the result of a prolonged stress-response, Ildari said. The brain’s “runaway stress response” – as he calls it – is similar to the fight or flight response, which evolved to help our ancestors when they faced predators or other physical dangers. The runaway stress response required intense physical activity for a few seconds, a few minutes, or – in extreme cases – a few hours.
“The problem is for many people throughout the Western world, the stress response goes on for weeks, months and even years at a time, and when it does that, it’s incredibly toxic,” Ildari said.
Living under continually stressful conditions – as many modern humans do – is disruptive to neuro-chemicals like dopamine and seratonin, which can lead to sleep disturbance, brain damage, immune dysregulation and inflammation, Ildari says.
Civilization is the disease
Epidemiologists have now identified a long list of other stress-related diseases as “diseases of civilization” – diabetes, atherosclerosis, asthma, allergies, obesity and cancer. These diseases are rampant throughout the developed world, but virtually non-existent among modern-day aboriginal peoples.
In a study of 2000 Kaluli aborigines from Papua New Guinea, only one marginal case of clinical depression was found. Why? Because the Kaluli lifestyle is very similar to our hunter-gatherer ancestors’ lifestyle that lasted for nearly 2 million years before agriculture, Ildari said.
“99.9 percent of the human experience was lived in a hunter-gatherer context,” he added. “Most of the selection pressures that have sculpted and shaped our genomes are really well adapted for that environment and that lifestyle.”
In view of nearly 3 million years of hominid existence, since homo habilis first began use of stone tools, our genus has undergone rapid environmental change since the advent of agriculture about 12,000 years ago. And in the last 200 years, since the industrial revolution, our species has had to cope with what Ildari calls “radical environmental mutation” [. . .]
Read more: The Caveman Cure for Depression