COVID-19 mortality and vaccine efficacy in nursing homes: does vitamin B12 deficiency play a role?

Henry Olders, P.Eng, MD, FRCPC Affiliate Member, Dept of Psychiatry, McGill University, Montreal, Canada Abstract It is believed that nursing home residents experience more disease severity and higher mortality from COVID-19, compared to community-dwelling elderly with similar comorbidities. Among the possible explanations for this phenomenon is the difference in vitamin…

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Letter to the Editor: Comment on ‘Acute Impact of Immediate Release Methylphenidate Administered Three Times a Day on Sleep in Children with Attention-Deficit/Hyperactivity Disorder’

The study reported on in the article “Acute impact of immediate release methylphenidate administered three times a day on sleep in children with attention-deficit/hyperactivity disorder” (Corkum, Panton, Ironside, Macpherson, & Williams, 2008) found a significant reduction in total sleep time of almost an hour with medication compared to the no…

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What causes insomnia?

This article was published on the website of Scientific American, on 2003-5-12. download a pdf file of the web article. An edited version appeared in the print edition of Scientific American, October 2003. Download a pdf file of the print article. The articles were republished in 2006 in the print and online…

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Biology and Psychiatry: Some Missing Pieces in the Puzzle

Presented at the Academic Seminar, Jewish General Hospital, Montreal, Quebec, on 1982-3-26, during my first year of residency training in psychiatry. Download a pdf of the article Henry Olders, M.D. Jewish General Hospital Institute of Community & Family Psychiatry A. Introduction Since starting my explorations in psychiatry last summer, I…

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