This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Depression is a disease with a difficult set ...

People who have pulled an all-nighter may be familiar with that “tired and wired” feeling. Although the body is physically exhausted, the brain feels slap-happy, and almost giddy. Northwestern ...

Depression can also show up physically, with headaches, digestive issues or chronic pain without a clear medical cause. “If you’re struggling with clinical depression, your energy resources are likely ...

Surprise rewards may boost movement speed, hinting that dopamine signals in the brain help control motivation and physical vigor.

Share on Pinterest Animal research suggests matcha may hold some promise in relieving depression symptoms. Image credit: Dulin/Getty Images. Depression is a widespread mood disorder. Researchers are ...