Preventing and Treating Colds & Flu: Science-Backed Behavioral and Supplemental Strategies

This episode of the Huberman Lab podcast delves into the science of preventing and treating common colds and influenza. Dr. Huberman begins by differentiating between colds, primarily caused by over 160 serotypes of rhinoviruses, and the flu, caused by various influenza virus types like H1N1. He explains that the diversity of cold viruses is why there's no single cure, as antibodies developed against one serotype are ineffective against others. A key distinction is made regarding virus stability: cold viruses can survive on surfaces for up to 24 hours, while flu viruses typically die off within about 2 hours, influencing their primary modes of transmission.

The podcast dispels common myths, particularly the idea that cold temperatures cause colds or that one is no longer contagious after a few days of symptoms. Huberman emphasizes that contagion persists as long as symptoms like coughing, sneezing, and runny eyes are present, urging individuals to stay home when sick to prevent widespread transmission. He details how cold viruses, being extremely small (around 5 microns), spread through sneezes and coughs, but primarily infect through self-inoculation via the eyes after touching contaminated surfaces or hands. The skin, however, is highlighted as an excellent barrier against infection.

Practical insights and recommendations are a core focus. While acknowledging the flu shot's 40-60% effectiveness against specific seasonal strains and its potential to reduce symptom severity, Huberman discusses personal considerations for vaccination. He strongly advocates for behavioral tools to bolster the immune system, such as optimizing sleep, engaging in appropriate exercise, and leveraging light exposure (e.g., morning sunlight, red light therapy) for overall cellular and circadian health. Hand hygiene and avoiding touching the face, especially the eyes, are presented as critical preventative measures.

Broader implications include the significant financial, mental, and physical health costs associated with widespread illness. Huberman encourages listeners to track their own health patterns, noting personal anecdotal evidence that overtraining or exposure to cold temperatures during travel often preceded his own illnesses. This self-monitoring can help individuals identify personal triggers and implement preventative strategies, ultimately reducing the frequency and severity of colds and flu. The episode sets the stage for future discussions on specific compounds that can further enhance immune function.

there are indeed some excellent science supported techniques to avoid getting colds and flu

there are over 160 different types of what people call the cold virus

the cold virus is a pretty stable virus in that it can survive on surfaces nonhuman or human surfaces meaning skin or on a table or on a glass or on a door handle for up to 24 hours

one of the primary entry points of it getting inside your body is via the Eyes by wiping that cold virus on your eyes

this mythology that if we've had a cold for a few days and we're starting to feel better but we're still exhibiting symptoms that we're not contagious that is pure myth

the flu virus unlike the cold virus can only exist on surfaces for for about 2 hours after about 2 hours it tends to die off

Studies have shown that getting the flu shot reduces one's risk of Contracting the particular flu that is most abundant That season by about 40 to 60%

if you are coughing sneezing blowing your nose runny eyes and you're walking into work or the gym or onto public transportation and you're telling people I'm not contagious you're lying

it is possible to avoid getting a cold virus even if you've never been exposed to that serotype of cold virus

your skin actually provides an excellent barrier against most viruses and bacteria