Poor sleep in your 40s could make your brain age faster, new research suggests. The findings add to a growing body of evidence that sleep quality is closely linked to cognitive health, emphasizing the need to address sleep issues early in life.

Have difficulty falling or staying asleep? New research shows it's associated with signs of sped-up brain aging. Experts explain the risks.

Though sleep deprivation comes for us all on occasion, a new study suggests that habitually substandard shut-eye is linked to accelerated brain aging. While poor sleep quality doesn’t necessarily cause speedier brain aging,

Poor sleep may age the brain by nearly three years, scientists say - Scans of nearly 600 middle-aged people showed sleeping badly was associated with poorer brain health years later.