The Other Side Of Normal: How Biology Is Provid... Apr 2026

Research into the brain’s "connectome" shows that everyone’s neural wiring is unique. For example, the high levels of vigilance seen in people with anxiety are not necessarily "broken" circuits; rather, they are highly sensitive systems that, in a different ancestral context, would have been vital for survival. By looking at brain scans and neurochemical patterns, scientists are finding that "normal" is a statistical average rather than a biological standard. The Genetic Mosaic

ADHD: Hyper-focus and high energy would have been assets for a scout or hunter. The Other Side of Normal: How Biology Is Provid...

Low Mood: Some biologists argue that depressive symptoms may have served as an "involuntary subordination" signal to avoid social conflict or a way to conserve energy during times of scarcity. Toward Neurodiversity and Personalized Care The Genetic Mosaic ADHD: Hyper-focus and high energy

For decades, the search for a "depression gene" or a "schizophrenia gene" dominated psychiatric genetics. We now know that mental health conditions are rarely the result of a single genetic "glitch." Instead, they arise from thousands of small genetic variations working in concert with the environment. We now know that mental health conditions are

Evolutionary psychiatry asks a provocative question: why have these "disorders" persisted throughout human history? If depression or ADHD were purely detrimental, natural selection should have phased them out.

Anxiety: A "hyper-reactive" amygdala would keep a tribe safe from predators.