We asked experts in clinical psychiatry, sleep and anxiety the reasons why some people wake up anxious and tense — and what someone can do to work past the early-morning wave of emotion.

Deleting a gene called PTEN in certain brain cells disrupts the brain’s fear circuitry and triggers anxiety-like behavior in mice — key traits seen in autism. Researchers mapped how this ...

Chronic Hyponatremia Potentiates Innate Anxiety-Like Behaviors Through the Dysfunction of Monoaminergic Neurons in Mice. Molecular Neurobiology. doi.org/10.1007/s12035-025-05024-y.