Articles #gut health

In the past two decades of practice, if I were to name one single factor that silently disturbs sleep, weight, mood, digestion, immunity, memory — and often goes unnoticed in our usual investigations — I would say it is this: Cortisol.

For decades, the immune system was considered a self-sufficient defense force, separate from other body systems. Today, modern science has revealed a fascinating truth: the gut and its trillions of resident microbes are deeply intertwined with immune health. Nearly 70% of immune cells reside in the gut-associated lymphoid tissue (GALT), making the intestine not just a digestive organ but a central hub of immunity.