Besides anxiety and allergies, hypertension is one of the more common ailments I treat.  Fascinating that it might, also, have an immune component.

Hypertension: an immune disorder?

Abstract

T cell depletion can prevent hypertension in experimental animals. What is the nature of T cell activation in hypertension? In this issue of Immunity, Carnevale et al. (2014) implicate PlGF signaling in a reservoir of splenic T cells.