Mast Cell Activation Syndrome (MCAS) and Lyme Disease

Mast Cell Activation Syndrome (MCAS) and Lyme Disease

Why Immune Overreaction Can Stall Recovery People with chronic Lyme disease often feel like their body is “overreacting” to everything. Foods, supplements, exercise, weather or altitude changes, smells, medications, and even stress. Reactions that don’t make sense,...