A large study of 87,577 adults followed for over 8 years found that people who received more bright light during the day had a lower risk of developing dementia over time. The researchers used wrist-worn devices to objectively measure both daytime and nighttime light exposure, not just self-reported “time outside.”

At BrainSavers, we know sleep is a cornerstone of brain+body fitness. It sharpens memory, stabilizes mood, boosts focus, and protects against cognitive decline as we age. Yet sleep deficiency is all too common — and preventable. Sleep deficiency occurs when you get too little sleep, sleep at irregular times, experience poor-quality sleep, or have an untreated sleep disorder. It is not just about feeling groggy; it impairs daily function and raises risks for serious health is