Brain Defenders

From #1 New York Times bestselling author Dr. David Perlmutter comes a groundbreaking guide to the brain’s immune cells—essential to preventing disease and sustaining peak cognitive function and mental health

We’ve been fighting the wrong enemy. For decades, medicine has pointed its weapons at symptoms like memory loss, tremors, headaches, and lethargy, while ignoring the root causes of diseases like Alzheimer’s, Parkinson’s, and major depression. In Brain Defenders, neurologist Dr. David Perlmutter flips the script, exposing the real culprits: malfunctioning microglia, tiny immune cells that, when metabolically hijacked, go rogue and attack the very neurons they’re meant to protect.
With clarity and urgency, Dr. Perlmutter explains how a silent battle rages in the brain. Microglia can become either warriors of protection or agents of destruction—and the outcome depends largely on how we live. In Brain Defenders, you will:

• Learn the science of immunometabolism and the relationship between energy and your cells
• Understand the overlooked role of inflammation in everything from dementia to long COVID—and why the immune system may be the brain’s greatest threat and hope
• Discover how your lifestyle affects the fate of your microglia and, in turn, your cognitive future
• Uncover the surprising link between metabolic health and brain resilience, and how tools like fasting, sleep, and even oxygen therapy can restore damaged neural networks
• Explore therapeutic interventions—from metformin to lion’s mane mushroom—that support healing and slow neural decline

Neurodegeneration, cognitive impairment, and mood disorders are not inevitable, but often the result of chronic, controllable inflammation. Drawing on the latest peer-reviewed science and grounded in decades of neurological care, Dr. Perlmutter delivers a powerful message: the future of your brain health is in your hands.

Standard and Primary covers are widely available through general retailers. They often have higher print runs and can be cheaper, especially during sales.

In contrast, Direct Market (DM) and variant covers are primarily sold in comic shops. DM editions tend to have more limited availability and may be more valuable to collectors.

The main differences lie in artwork style, availability, price, and collector appeal. Ultimately, the choice between standard and variant covers depends on personal preference, budget, and individual collecting goals.

Comic book enthusiasts have various formats to choose from when collecting their favorite stories.
Here's a brief overview of the main types:

Omnibus

• Large, hardcover collections
• Usually contain complete runs or extensive story arcs
• Typically 800-1000+ pages
• Higher price point, often €100-€150

Oversized Hardcover (OHC)

• Similar dimensions to omnibus, but thinner
• Collect shorter runs or story arcs
• Usually 300-600 pages
• Priced between €30-€50

Hardcover (HC)

• Standard-sized hardcover books
• Collect 6-12 issues typically
• Similar dimensions to single issues, but with a hard cover
• Priced around €25-€35

Trade Paperback (TP)

• Softcover collections
• Standard comic book size
• Usually collect 4-6 issues
• Most affordable option, typically €15-€25

Other Formats

• Absolute Editions: Oversized, deluxe hardcovers (mainly DC Comics)
• Compendiums: Massive paperback collections
• Graphic Novels (OGN/GN): Original stories not previously released as single issues

The choice between these formats often depends on personal preference, budget, and collecting goals. Omnibus and OHC editions offer larger artwork and more content but at a higher price, while TPs provide a more affordable way to collect complete story arcs