Michael Greger helped reframe heredity as repeated environment rather than fate. This article applies that logic to language, arguing that words, tone, and narrative can transmit stress, perception, and emotional conditioning across generations.

A historical record of how LEIT crystallized through one key shift: reframing inheritance as instruction sets rather than genes alone. This article explains how language, stress, caregiving, and biology became one continuous model.

LEIT (Linguistic–Epigenetic Inheritance Theory) argues that repeated language patterns can function as chronic stress inputs that shape trauma biology through epigenetic regulation. Over generations, families may transmit both the communication patterns and the biological sensitivities those patterns reinforce, reframing “hereditary mental illness” as a dual inheritance loop.