Stress, by releasing glucocorticoid hormones, affects the brain, especially
a region called the hippocampus which has high levels of glucocorticoid re
ceptors. Chronic stress or glucocorticoid oversecretion adversely affects t
he hippocampus, reducing nerve cell connections and producing memory impair
ments. The elderly are particularly vulnerable to this degenerative process
. What are the events that underlie this important disorder and are there w
ays to prevent age-related loss of the ability to learn and memorize?