"€œIt blew the doors off what we thought we knew about depression treatment."€ So said psychiatrist James Murrough of New York's Mount Sinai Hospital, in reference to a chemical named ketamine. Forty percent of human beings will experience at least one depressive episode in the course of their lives. Every year 13"€“14 million Americans are diagnosed with major depression. "€œOf those who seek treatment, 30% to 40% will not get better or fully recover with standard antidepressants,"€ says mainstream medical site WebMD. That makes 5"€“6 million chronic sufferers in the U.S. ...