Stem Cell Therapy: What It Is, What It Can (and Can't) Do (2026)
Your body is quietly running a repair operation right now. Old cells die, damaged tissues signal for help, and specialised cells migrate to where they're needed. Stem cell therapy is built on a single ambitious idea: that we can harness — and supercharge — that process. It sounds almost too good to be true. And depending on who's selling it, it sometimes is. The global stem cell therapy market is valued at roughly $20 billion in 2026 and is projected to nearly triple by 2036. Thousands of private clinics now offer treatments for everything from arthritic knees to Parkinson's disease. Yet the science supporting most of those treatments is still catching up. Understanding what stem cells genuinely can and cannot do may be the most important thing you read before making a decision about your health. What Are Stem Cells? Stem cells are the body's raw material — undifferentiated cells that can divide and develop into more specialised cell types. A stem cell in bone marrow mi...