Fig. 2. Neither CD4⁺CD62L^- (top) or CD4⁺CD62L⁺ (bottom) T cells increased significantly over baseline following the acute stressor. Vulnerable caregivers, however, had significantly lower levels of CD4⁺CD62L^- T cells at both time points (p=.01) but not CD4⁺CD62L⁺ T cells (mean,±SEM).