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Ketalux - Ketamine Therapy Education
Neuroscience Library

Neuroscience & Mental Wellness Library

An educational library on the brain science behind mental wellness - plasticity, the default mode network, the stress system, inflammation, sleep, exercise, regulation, and trauma.

Written by: Ira ZootMedically reviewed by: Ketalux Clinical Review PanelLast updated: June 4, 2026Evidence: Educational synthesis - peer-reviewed sources
Neuroplasticity: The Brain's Capacity to Change

How the brain reorganizes structure and function in response to experience, learning, and intervention - and where ketamine fits in.

The Default Mode Network and Self-Referential Thought

The brain network most active when we are thinking about ourselves - and why its activity matters in depression and ketamine therapy.

The HPA Axis: How Chronic Stress Reshapes the Brain

The hypothalamic-pituitary-adrenal axis is the body's central stress response system - and chronic activation has measurable effects on brain and mood.

Inflammation and Depression: The Immune-Brain Connection

A meaningful subset of depression is associated with elevated inflammatory markers - changing how we think about mechanism and treatment.

Sleep: The Foundation of Mental Wellness

Sleep is one of the highest-leverage inputs to mood, cognition, and emotional regulation - and one of the first things disrupted in mental illness.

Exercise and the Brain: BDNF, Mood, and Cognition

Regular physical activity is one of the most robust non-pharmacological supports for mental wellness.

Nervous System Regulation: A Practical Overview

The autonomic nervous system shapes how safe, available, and present we feel - and there are evidence-supported ways to influence it.

Trauma, Memory, and the Body

How traumatic experience is stored, why it is hard to think one's way out, and what kinds of treatments tend to help.

Synaptogenesis: How New Connections Form

The cellular process of forming new synapses — and why rapid antidepressants are thought to work by triggering it.

Brain-Derived Neurotrophic Factor (BDNF)

A key protein for neuroplasticity, often called 'fertilizer for the brain' — and a major lever in modern mental wellness research.

NMDA Receptors and the Glutamate System

The glutamate receptor at the center of modern depression research — and ketamine's primary pharmacological target.

Glutamate: The Brain's Primary Excitatory Signal

The most abundant excitatory neurotransmitter in the brain — and a central player in modern theories of mood and plasticity.

Neural Pathways: How the Brain Builds Habits

How repeated patterns of thought, emotion, and behavior carve durable neural pathways — and how those pathways can be reshaped.

Emotional Processing in the Brain

How the brain experiences, regulates, and integrates emotion — and what goes wrong in depression and trauma.

Memory Reconsolidation

How memories can be re-stored in updated form when reactivated under the right conditions — and why this matters for trauma therapy.

Brain Connectivity: Networks, Not Regions

Modern neuroscience emphasizes how brain regions communicate over how isolated regions function — and why this reframes mental health.

Stress Response Systems

How the brain and body detect, respond to, and recover from stress — and what chronic activation does over time.

Cognitive Flexibility

The capacity to shift perspective, update beliefs, and respond to new information — and why it's often impaired in depression.

Educational use only. The content on this page is provided for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Ketamine and related therapies carry risks and are appropriate only under qualified medical supervision. Always consult a licensed healthcare professional about your individual situation. Information may change as research evolves.