O'Sullivan M, et al. – Researchers compared caregivers of individuals with dementia with two groups of non-caregivers recruited using different sampling methods regarding cognitive performance. Analysis of 252 spousal dementia caregivers and demographically matched non-caregiving control groups revealed comparable performance on most cognitive domains between the two groups. The results did not support the association of caregiving with stress-induced cognitive deficits. Instead, they consistently identified the trend toward better caregiver performance with the healthy caregiver hypothesis.