RHR: Mouth Taping: Beyond the Hype—What the Science Really Says
The episode examines mouth taping, a social‑media sleep hack, against scientific evidence. A May 2025 systematic review of 10 studies (213 participants) found limited, inconsistent benefits and notable safety concerns, especially for those with nasal obstruction or moderate‑to‑severe OSA. Benefits were observed mainly when nasal passages were clear and the technique was combined with devices such as mandibular advancement appliances. Experts advise diagnosing sleep disorders and addressing airway anatomy before trying mouth taping.
RHR: Erythritol: The ‘Safe’ Sweetener That’s Anything But
Recent studies from the Cleveland Clinic and the University of Colorado Boulder have identified erythritol, a widely used sugar‑alcohol, as a potent risk factor for cardiovascular disease. Elevated blood erythritol levels were associated with roughly a two‑fold increase in heart...
RHR: New Study Challenges the Plant-Based Longevity Myth
In this episode Chris Kresser reviews a new American Journal of Clinical Nutrition study of over 5,000 Chinese adults aged 80+, which found vegetarians and especially vegans were 19‑29% less likely to become centenarians than omnivores, with the effect driven...
RHR: The Gut-Brain Connection: How Your Microbiome Affects Your Mental Health
Emerging research redefines depression as an inflammatory disorder linked to gut health. Cytokine‑driven inflammation often originates from increased intestinal permeability, allowing endotoxins to reach the brain. Short‑chain fatty acid butyrate and specific probiotic strains, notably Bacillus coagulans, have shown promise...