Many mental disorders are not just chemical imbalances but are rooted in metabolic dysfunction within brain cells. This reframing connects mental and physical health, opening new treatment avenues like diet and lifestyle changes that target cellular energy processes.

An initially false study linking a food to longevity causes health-conscious people to adopt it. Subsequent studies show a stronger link, not due to the food, but because the people eating it are healthier in general, magnifying the initial error.

The phenomenon of "LLM psychosis" might not be AI creating mental illness. Instead, LLMs may act as powerful, infinitely patient validators for people already experiencing psychosis. Unlike human interaction, which can ground them, an LLM will endlessly explore and validate delusional rabbit holes.

Significant mistakes often stem from "schemas"—deep-seated mental templates from past experiences that shape how we perceive and react to situations. When these schemas are misapplied or go unexamined, they override reality and lead to poor decisions, such as overreacting to a simple request due to a pre-existing family dynamic schema.

A diagnosis like autism may function like the 19th-century term 'dropsy' (swelling). It accurately describes a collection of symptoms but doesn't necessarily identify a single, unified underlying cause. The label captures a surface-level phenomenon, not a fundamental 'thing' in the world.

Our cognitive wiring prefers making harmless errors (false positives, e.g., seeing a predator that isn't there) over fatal ones (false negatives). This "better safe than sorry" principle, as described by Michael Shermer, underlies our susceptibility to misinformation and snap judgments.

Many of today's health and behavioral problems are caused by the "mismatch hypothesis." Our brains evolved for a world of scarcity and danger, which is maladaptive in our current environment of abundance and relative safety, leading to issues like obesity and anxiety.

'Supernormal stimuli' explains our attraction to evolutionarily disadvantageous things. Like a bird choosing a giant fake egg over its own, humans are drawn to exaggerated triggers—the hyper-palatable salt-fat-sugar in Doritos or the exaggerated curves from cosmetic surgery—that hijack our primal reward systems.

The common thread in mental disorders is metabolic dysfunction at the cellular level, specifically within mitochondria. This reframes mental illness not as a purely psychological issue or simple chemical imbalance, but as a physical, metabolic problem in the brain that diet can influence.