Phase 1 · Understand the Body — Why the disease behaves the way it does.
The One-Line Truth
The whole disease in one chain
Everything on this page exists to explain this line.
Keep the person alive first, then fix the brain chemistry and the life problems that fed it.
A city's electrical grid in a blackout cascade
Imagine a city's power plants (raphe nuclei, locus coeruleus, ventral tegmental area) that make electricity (serotonin, norepinephrine, dopamine). The power lines carry this electricity to the mayor's office (prefrontal cortex), the library of memories (hippocampus), and the alarm station (amygdala). When chronic stress or illness damages the power plants, they produce less electricity. The mayor's office loses power and can't plan the city's future or tell the alarm station 'relax, no real emergency.' The alarm station, now uncontrolled, keeps blaring sirens nonstop (constant fear and hopelessness). The library catches fire from the power surges and forgets that past blackouts always ended (hippocampal shrinkage from high cortisol). The backup generator (HPA axis) gets stuck running full-blast instead of shutting off, burning through fuel (cortisol poisoning brain cells). With no power to plan, no memory of recovery, and sirens blaring forever, the city dwellers feel the only way to stop the noise is to destroy the whole system—which is suicide.
APA Practice Guideline for the Treatment of Patients with Major Depressive Disorder (2010, updated 2020) · U.S. Preventive Services Task Force (USPSTF) Depression Screening Recommendation 2023 · VA/DoD Clinical Practice Guideline for Assessment and Management of Patients at Risk for Suicide 2019 · The Columbia Lighthouse Project (Columbia Suicide Severity Rating Scale, C-SSRS) · reviewed 2026-07-07