Physicians have long observed a mystifying phenomenon: After a bout of infection or an autoimmune disease flare-up, some people experience prolonged mood swings, emotional dysregulation, and changes ...

The expert-backed eating plan actually feels accessible—and has little downside.

If you are having thoughts of suicide, or someone you know is in immediate danger, you should call 911 (or your country's local emergency line) or go to an emergency room. Explain that it is a ...

Psychology researchers have found another reason that sleep, mood and stress are important: they affect the extent to which older adults feel they have control over their lives. The findings can ...

Ever been up in the mountains, at the beach, or in a thunderstorm and suddenly felt a huge change in your mood? That’s not just a feeling of awe. It might be negative ions. Negative ions are molecules ...

Could people’s mood impact how strongly their immune system responds to the influenza (flu) vaccine? It's a provocative idea, to be sure, but a new study, published online this month in Health ...

Hormones like testosterone, cortisol, melatonin, and more directly influence men’s mood, energy, and sleep quality. Hormonal imbalances can cause depression, anxiety, irritability, fatigue, and sleep ...