Aging and Immune Function

Aging dramatically increases risk of serious viral and bacterial infections. Risk of serious viral and bacterial infections rises dramatically as the body ages. Age-related immune vulnerability stems from four interconnected biological declines: microbiome deterioration, thymus atrophy, increased medication use, and reduced vitamin D absorption. Supporting the gut microbiome and preserving thymus function are the two foundational priorities as immune function declines with age. Supporting the gut microbiome and preserving thymus gland function are the two foundational priorities as immune function declines with age.