Mental health tends to change over the course of the day, a new study shows. The findings suggest it may make more sense to ...

But in general, evidence consistently shows that healthy amounts of sleep are associated with better mood, improved productivity, and even heightened satisfaction with life in general. The ...

There’s no question that sleep is important for your health. Without enough of it, your risk of developing diseases such as ...

A 2023 study that included data from nearly 500,000 participants found that adults who slept more than nine hours per day ...

Dec. 18, 2024 — Research finds connections between mood and circadian rhythm disruptions in study using Fitbit data from hundreds of medical ... Sleep Apnea Linked to Changes in the Brain Dec.

Researchers have identified a second dopamine-driven "clock" in the brain that works alongside the biological 24-hour cycle, ...

New research suggests that mood swings in bipolar disorder are regulated by two clocks: the body’s 24-hour circadian rhythm ...