unPAUSED with Dr. Mary Claire HaverMast Cells, Histamine, and Perimenopause Explained: MCAS, Anxiety, EstrogenMCAS In Plain English
19:50–21:17 · 86s
Rubin defines mast cell activation syndrome, explains hallmark multi‑system symptoms, and notes frequent overlap with POTS and gut issues—clarifying why it’s often confusing.