Diseases, Conditions, Syndromes

Discovery may help patients beat deadly pneumonia

Researchers have found that a hormone responsible for controlling iron metabolism helps fight off a severe form of bacterial pneumonia, and that discovery may offer a simple way to help vulnerable patients.

Medications

Study gives a peek at how ketamine acts as 'switch' in the brain

Ketamine, an established anesthetic and increasingly popular antidepressant, dramatically reorganizes activity in the brain, as if a switch had been flipped on its active circuits, according to a new study by Penn Medicine ...

Psychology & Psychiatry

Recalled experiences surrounding death: More than hallucinations?

Scientific advances in the 20th and 21st centuries have led to a major evolution in the understanding of death. At the same time, for decades, people who have survived an encounter with death have recalled unexplained lucid ...

Medications

Ketamine's effect on depression may hinge on hope

In study after study, the psychoactive drug ketamine has given profound and fast relief to many people suffering from severe depression. But these studies have a critical shortcoming: Participants usually can tell whether ...

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