In this clip, Dr. Rhonda Patrick describes what Mendelian randomization studies are and how they are valuable instruments in the scientific toolbox.

In this clip, Dr. Roger Seheult explains how vitamin D is a misnomer and how it fulfills many critical roles in the body.

In this clip, Dr. Roger Seheult discusses how he has always had a passion for teaching and simplifying complex topics.

In this clip, Dr. Roger Seheult describes his personal experience treating COVID-19 patients in the hospital.

In this clip, Dr. Roger Seheult describes how treatment modalities differ between the two distinct phases of COVID-19 illness.

In this clip, Dr. Roger Seheult describes how mRNA vaccines stimulate the body's immune system to produce antibodies.

In this clip, Dr. Roger Seheult discusses the importance of getting enough sleep for proper immune functioning and resisting viral infections.

In this clip, Dr. Roger Seheult explains the different parts of sleep and the value of each phase.

In this clip, Dr. Roger Seheult addresses the importance of the interferon response in the body's defense against viruses.

In this clip, Dr. Roger Seheult and Dr. Rhonda Patrick describe emerging findings of vitamin D intervention trials and discuss the value of meticulous study design.

In this clip, Dr. Roger Seheult discusses the biological plausibility of incorporating heat hydrotherapy into the treatment of COVID-19.

In this clip, Dr. Roger Seheult explains that well-ventilated spaces are a factor in dampening the spread of the SARS-CoV-2 virus.

In this clip, Dr. Roger Seheult and Dr. Rhonda Patrick discuss how vitamin D levels might affect the renin-angiotensin-system and how this relates to COVID-19 outcomes.

In this clip, Dr. Roger Seheult and Dr. Rhonda Patrick discuss how to assess vitamin D requirements and its toxicity potential.

In this clip, Dr. Roger Seheult and Dr. Rhonda Patrick discuss how to assess vitamin D requirements and its toxicity potential.