Adrenaline: a hormone released in the presence of stress which raises heart rate. See also: stress.
Cortisol: a hormone released in the presence of stress which is raises blood sugar levels and suppresses the immune system. See also: stress.
Endemic: a disease rampant but contained within a single geographical area. See also: measles
Stressor: any situation which forces demands upon a person. Typically involves elevated anxiety or nervousness in teh subject. See also: stress