Medicine/Pharmacology - Psychology - 31.03.2011Older bereaved ’die of broken immune system not broken heart’Immunity experts at the University of Birmingham have found biological evidence to suggest that bereavement lowers physical immunity, putting older people at risk of life-threatening infections. Brand new research published online in the journal Brain Behavior and Immunity shows that the emotional stress of bereavement is associated with a fall in the efficiency of white blood cells known as neutrophils, which combat infections such a pneumonia, a major cause of death in older adults.