Moderate level of helping, both formal volunteering and informal helping, consistently linked to robust cognitive benefits

However, older women report less sexual distress than middle-aged women

Inverse associations seen between higher adherence to three diets with annual rate of total chronic disease accumulation

Significantly greater benefit on global cognition seen for structured versus self-guided intervention over two years

Endotoxin induced increases in Profiles of Mood States depression subscale to a greater extent in those with insomnia

However, for older and vulnerable adults, evidence is insufficient to assess balance of benefits and harms of screening for caregiver abuse, neglect

Increased mortality seen in association with longer nap duration, greater intraindividual variability, more naps from 11 a.m. to 1 p.m., 1 to 3 p.m.

Notable shifts seen among those with higher income and certain clinical conditions

Depression present in late life and midlife linked to significantly increased risk for all-cause dementia

After adjustment for demographic and health variables, hazard ratio was 1.94 for individuals with epilepsy and sleep deprivation