Researchers monitored the activity of around 2,000 adults for three years. A new study from the American Academy of Neurology ...

New research from the University of Leeds suggests that some male endurance athletes over 50 may face an increased risk of ...

Elevated dementia risks among older adults were associated with weaker and more fragmented circadian rest-activity rhythms ...

A new study reveals male endurance athletes over 50 may face increased heart rhythm risks during exercise, especially those ...

Inside the body, a 24-hour rhythm, known as the circadian rhythm, quietly coordinates when we sleep, wake, eat and recover.

Circadian rhythms that are weaker and more fragmented are linked to an increased risk of dementia, according to a new study published on December 29, 2025, in Neurology ®, the medical journal of the ...

Scientists have discovered that breast cancer can quietly throw the brain’s internal clock off balance—almost immediately after cancer begins. In mice, tumors flattened the natural daily rhythm of ...