In 2011, The New York Times commented “As late as 1985, the idea of a connection between the brain and the immune system was dismissed in an editorial in The New England Journal of Medicine as ‘folklore.’”⁠1

But evidence was growing for that connection. In 1980, psychiatrist and experimental psychologist Robert Ader coined the term Psychoneuroendocrinology to express the intercommunication between the brain and the immune system — and published results of experiments that demonstrated it. His findings were “incontrovertible,” said Anne Harrington, a Harvard professor of the history of science, in her 1997 book “The Placebo Effect.”⁠2

Today the field produces medical breakthroughs.

A few samples of the contents of this section:

The PEA Cascade
Stages — or Flavors?
Aging & Sex

(The book contains much more.)

⁠1 Vitello, “Robert Ader, Who Linked Stress and Illness, Dies at 79,” New York Times, New York edition, Section B:December 29, 2011), 8.
⁠2 Vitello.