Dr. Barry Dworkin

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  • Beta-blockers, taken by millions after a heart attack, found to be ineffective for people with uncomplicated heart attacks (normal heart function thereafter) and presents increased risk of harm to women. Changes to management likely in the works for this population.

    May 27, 2026

    Medical Mythbusting Commentary for May 27, 2026 Source:Common heart drug taken by millions found useless — and possibly dangerous Reference:Beta-Blockers after Myocardial Infarction without Reduced Ejection Fraction Beta-blockers after myocardial infarction: effects according to sex in the REBOOT trial

  • Remnant cholesterol levels found to be an independent risk factor for heart disease. We discuss what this is and what the approach to management entails.

    May 26, 2026

    Medical Mythbusting Commentary for May 26, 2026 Source:Experts have found a new type of cholesterol. And it could be the most dangerous Reference: Source: openevidence.comRemnant cholesterol — defined as total cholesterol minus LDL-C minus HDL-C — is an emerging and increasingly recognized causal risk factor for ASCVD. Management centers on lifestyle modification as first-line therapy,…

  • Biological age tests reveal what slows or hastens aging – but they’re useful only for researchers, not consumers

    May 7, 2026

    Medical Mythbusting Commentary for May 7, 2026 Source:Biological age tests reveal what slows or hastens aging – but they’re useful only for researchers, not consumers

  • PTSD leaves detectable marks in blood, new research reveals

    April 29, 2026

    Medical Mythbusting Commentary for April 29, 2026 Source:PTSD leaves detectable marks in blood, new research reveals Reference:Towards scalable biomarker discovery in posttraumatic stress disorder: triangulating genomic and phenotypic evidence from a health system biobank

  • How to prepare for tick season.

    April 23, 2026

    Medical Mythbusting Commentary for April 23, 2026 Source:‘You have to be careful’: Experts warn tick season has started early in Canada Tick bite prevention strategies for eastern and central North America, including Ottawa, Ontario: Before venturing outside: During and after exposure to tick habitats: If an attached tick is detected: Additional considerations:

  • After a heart attack, beta-blockers are often a lifelong medicine. Maybe they shouldn’t be for stable low-risk post-MI patients

    March 31, 2026

    Medical Mythbusting Commentary for March 31, 2026 Source:After a heart attack, beta-blockers are often a lifelong medicine. Maybe they shouldn’t be

  • The reason Vitamin K1 is given to newborns and why it has been a standard of care for over 65 years.

    March 26, 2026

    Medical Mythbusting Commentary for March 26, 2026 Source:It’s not just vaccines: Parents are refusing other routine preventive care for newborns

  • What is the risk for never-smokers to develop lung cancer? How does it compare in terms of risk and prevention in relation to more common cancer diagnoses?

    March 11, 2026

    Medical Mythbusting Commentary for March 11, 2026 Source:Never smoked before? You could still be at risk of lung cancer, experts say Comprehensive Summary: Lung Cancer in Never-Smokers vs. Major Cancers in Canada (2025 projections) Lifetime cancer risk from yearly LDCT lung cancer screening in never-smokers: primarily radiation-induced risk. Standardized annual incidence per 100,000 (apples-to-apples comparator):

  • Scientists Find an Early Parkinson’s Signal Hidden in Blood

    February 24, 2026

    Medical Mythbusting Commentary for February 24, 2026 Source:Scientists Find an Early Parkinson’s Signal Hidden in Blood Reference:Longitudinal assessment of DNA repair signature trajectory in prodromal versus established Parkinson’s disease

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