The Complete Long COVID Handbook

The Complete Long COVID Handbook: Endothelial Dysfunction & Microclots

Volume 6 of the Series by Robert Groysman, MD

Why does Long COVID make you feel so exhausted, foggy, short of breath-or worse-even when your tests look normal?

One of the most overlooked causes may be hiding in your blood.

New research reveals that many Long COVID symptoms may be driven by endothelial dysfunction (damage to blood vessel linings) and microclots (tiny, persistent clots that block oxygen flow). These invisible issues can affect your brain, muscles, nerves, and organs-leaving you sick, frustrated, and without answers.

In this groundbreaking and easy-to-understand guide, physician Dr. Robert Groysman walks you through:

• What endothelial dysfunction and microclots are-and how they may be driving your symptoms
• Which tests can uncover these problems (even when basic labs look fine)
• What symptoms suggest your circulation is impaired
• Natural and medical treatment options, from supplements to apheresis
• What to expect with recovery, and how to track your progress

This book is written for patients, families, and healthcare providers who want real explanations, practical tools, and a hopeful path forward. Whether you're newly diagnosed, stuck in a cycle of confusing symptoms, or searching for better care-this book helps you connect the dots and reclaim control.

You're not imagining it. You're not alone. And you're not without options.