Add Yahoo as a preferred source to see more of our stories on Google. Researchers’ suspect that circadian rhythms, which cause cortisol to peak shortly after waking and decrease to its lowest levels ...

It’s a brain disorder yielding patterns of mood variability and energetic intensity that interfere with healthy adaptive functioning. For most without bipolarity mood doesn’t shift significantly, at ...

Male hormone levels maintain day-to-day stability while female hormones experience continuous changes throughout both the menstrual cycle and various life stages.

Discover how analyzing simple sleep patterns can revolutionize mental health treatment by predicting mood episodes with cutting-edge accuracy. Study: Accurately predicting mood episodes in mood ...

Mental health forms a crucial component of overall well-being, yet many conditions remain undiagnosed or misunderstood. Bipolar disorder, characterized by extreme mood swings, affects daily life ...

The shorter days and longer nights of winter bring more than just colder temperatures for millions of Americans. As sunlight diminishes and temperatures drop, many people experience a noticeable shift ...