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Show notes and resources: https://tim.blog/2022/09/30/drjohnk...

Dr. John Krystal is the Robert L. McNeil, Jr., Professor of Translational Research; Professor of Psychiatry, Neuroscience, and Psychology; Chair of the Department of Psychiatry at Yale University; and Chief of Psychiatry and Behavioral Health at YaleNew Haven Hospital.

Dr. Krystal is a leading expert in the areas of alcoholism, posttraumatic stress disorder, schizophrenia, and depression. His work links psychopharmacology, neuroimaging, molecular genetics, and computational neuroscience to study the neurobiology and treatment of these disorders. He is best known for leading the discovery of the rapid antidepressant effects of ketamine in depressed patients.

ONE VERY IMPORTANT DISCLAIMER: I’m not a doctor, nor do I play one on the Internet. None of the content in this podcast constitutes medical advice or should be construed as a recommendation to use ketamine or psychedelics. There are psychological, physical, and sometimes legal risks with such usage. Please consult your doctor before considering anything we discuss in this episode.

Please enjoy!

00:00 Start
03:08 The challenges faced by John’s late father, Henry Krystal.
11:28 Was Henry’s work discussed around the Krystal dinner table?
15:05 What people frequently misunderstand about depression.
23:35 Why partial response and nonresponse occur commonly in psychiatry.
30:22 From the serotonin hypothesis to “what’s really exciting” about antidepression research.
33:26 How monoamine oxidase inhibitors reduce symptoms of depression.
35:02 MAOI Side effects and risks.
37:23 When Western medicine duplicates centuriesold shamanic wisdom.
40:29 How preimaging neuroscience of the ’80s was like Ptolemaic astronomy.
45:03 The reason for depression isn’t as simple as a lack of serotonin.
47:32 The change in perspective that illustrated ketamine as a potential therapy.
52:57 From first studies to overcoming skepticism.
01:01:33 How ketamine went from “horse tranquilizer” to antidepressant candidate.
01:18:49 The dose makes the difference.
01:23:14 What is dissociation, and is it an essential part of ketamine’s healing process?
01:39:42 Recommendations for optimal treatment of a close friend (frequency, duration, psychotherapy, etc.).
01:54:05 Reducing the potency of maladaptive memories.
01:59:58 Best dosage practices.
02:07:18 I.M. vs. I.V.
02:08:52 Common insession sideeffects (and remedies).
02:13:34 What my ketamine experience was like.
02:16:52 Optimal settings.
02:22:51 Ketamine risks.
02:35:57 Decreasing the opportunities for abuse and addiction.
02:43:25 Enantiomers: rketamine vs. sketamine
02:50:33 How effective is ketamine for chronic pain relief?
02:59:05 Why might the durability of relief outlast the presence of ketamine in the body?
03:03:09 What is smethadone?
03:04:31 Does sketamine have the same abuse potential as rketamine?
03:07:56 Opiate receptor interaction with ketamine and other compounds.
03:09:58 What is Salvinorin A?
03:14:34 Exploring the ups and downs of optimizing ketamine with rapamycin.
03:32:06 Ketamine doesn’t have a lot in common with other psychedelics.
03:36:02 The effect of ketamine and other hallucinogens on the thalamus.
03:38:56 How important is the role of brainderived neurotrophic factor (BDNF)?
03:41:44 BHB, ethanolfree alcohol, and exercise vs. depression.
03:45:13 Ketamine’s impact on sleep, and the potential dangers of too much exercise.
03:47:19 What John anticipates for the future of ketamine research and application.
03:52:05 Giving credit to the pioneers of the field.
03:53:48 Parting thoughts.

About Tim Ferriss:
Tim Ferriss is one of Fast Company’s “Most Innovative Business People” and an earlystage tech investor/advisor in Uber, Facebook, Twitter, Shopify, Duolingo, Alibaba, and 50+ other companies. He is also the author of five #1 New York Times and Wall Street Journal bestsellers: The 4Hour Workweek, The 4Hour Body, The 4Hour Chef, Tools of Titans and Tribe of Mentors. The Observer and other media have named him “the Oprah of audio” due to the influence of his podcast, The Tim Ferriss Show, which has exceeded 800 million downloads and been selected for “Best of Apple Podcasts” three years running.

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