To better understand why some people develop the condition while others do not, researchers have worked together to identify ...

Chronic sleep deprivation acts as a systemic stressor, elevating risks for cardiovascular disease and metabolic dysregulation while impairing cognitive function.

New research among older adults with sleep apnea reveals that verbal memory performance is significantly worse in women—but not in men—who also have insomnia. Results show that older adults with ...

Addressing insomnia isn’t just a fight against tomorrow’s midafternoon fatigue –– it could help protect against brain aging in the future, new research suggests. Sleep difficulties are common, with 12 ...

Dec. 22, 2025 A new study shows dopamine isn’t the brain’s movement “gas pedal” after all. Instead of setting speed or strength, it quietly enables movement in the background, much like oil in an ...

Is your teen not sleeping well at night? Many teens don’t get the recommended amount of sleep, between 8 and 10 hours. It could be insomnia. What are some signs of insomnia in teens? They may be tired ...

Insomnia is the most common sleep disorder. But there are effective treatments for it. Doctors might start by recommending lifestyle changes that could improve your sleep. Or they might refer you for ...

Anxiety and insomnia don’t just affect mood. Researchers found that these conditions can reduce natural killer cell counts, possibly compromising immune strength.

“Psychophysiological insomnia” was a diagnosis doctors gave to people experiencing sleeplessness related to anxiety about being unable to sleep. It is no longer in use. Because anxiety about sleep can ...

Dec. 22, 2025 A new study shows dopamine isn’t the brain’s movement “gas pedal” after all. Instead of setting speed or strength, it quietly enables movement in the background, much like oil in an ...