Bonus - The Most Important Blood Test Your Doctor Isn't Ordering (But Should Be)

In this bonus episode of After Hours Clinic, Dr. David Janarious breaks down a simple but underutilized blood test that can provide meaningful insight into alcohol consumption. He explains how the phosphatidyl ethanol (PEth) test works, why traditional screening methods often fall short, and how this inexpensive tool can drive real behavioral change. The conversation examines the broader cultural normalization of alcohol, its long-term health impacts, and why reducing intake may offer more benefit than many advanced therapies people pursue for longevity.Key Points From This Episode:[00:00:00] Dr. David Janarious introduces an overlooked screening test he believes deserves more attention[00:00:20] Why more health data only matters when testing leads to actionable decisions[00:02:05] Introduction to the PEth test and how it measures alcohol use over roughly two to four weeks[00:02:34] Why acute alcohol tests like breath or blood ethanol differ from pattern-based alcohol screening[00:03:03] Problems with standard alcohol questionnaires and why people often do not answer honestly[00:04:08] Stigma, judgment, and the difficulty of discussing substance use in medical settings[00:05:13] How PEth testing opens more direct and productive conversations with patients[00:05:38] What different PEth score ranges can suggest about drinking habits[00:06:18] Sensitivity and specificity of the test and why the results can be eye-opening[00:06:59] How objective results can motivate patients to change their behavior[00:07:21] Patients comparing scores and turning progress into a form of accountability[00:07:42] How the test can also surface deeper alcohol use issues that need more treatment[00:07:56] Why Dr. Janarious believes alcohol screening should be more common[00:08:07] Cultural pressure around drinking and why cutting back can be difficult[00:08:30] Why alcohol may be more dangerous long term than many people realize[00:08:57] Major health consequences of chronic alcohol use, including liver failure, heart failure, and cancer[00:09:13] Why moderating alcohol may deliver more benefit than many longevity-focused therapies[00:09:13] Closing thoughts on the PEth test as a cheap, important, and actionable toolLinks:BetterLife: https://www.joinbetterlife.com/about-usDr. David Janarious on LinkedIn: https://www.linkedin.com/in/david-janarious-8b6073280Production and editing by The Podcast Consultant: https://thepodcastconsultant.com