Why do we struggle to sleep in new places?

Scientists have uncovered why we struggle to sleep in unfamiliar places. A specific brain circuit, activated by new environments, releases neurotensin, keeping us alert. This 'first night effect' acts as a survival mechanism, with one eye open for danger. This discovery could lead to new insomnia treatments.

Why do we struggle to sleep in new places?
Scientists have uncovered why we struggle to sleep in unfamiliar places. A specific brain circuit, activated by new environments, releases neurotensin, keeping us alert. This 'first night effect' acts as a survival mechanism, with one eye open for danger. This discovery could lead to new insomnia treatments.