Optimism, sense of purpose, and the condition of the immune system as we age

Harvard Pop Center Bell Fellow Hayami Koga, MD, PhD, is lead author on a study that aims to explore the relationship between optimism, a sense of purpose, and immune markers in aging. Findings point to there being an association between these two components of psychological well-being and an increase in certain T cells in the context of “immunosenescence” (the gradual deterioration of the immune system that is brought on by…