I’d argue that the properties of most / all tissues undergo changes when subject to stress. Stress ramps up blood pressure, causes changes in the properties of

I’d argue that the properties of most / all tissues undergo changes when subject to stress. Stress ramps up blood pressure, causes changes in the properties of blood directly, increases inflammation, down regulates the immune system and healing in general, increases muscle tension generally, constricts blood vessels, causes changes in hormones and cell signalling molecules in general.