neuroscience
Researchers have discovered that the brain does not gradually fall asleep but instead undergoes a rapid transition from wakefulness to sleep in just minutes. This tipping point, identified through EEG data from over 1,000 people, challenges the long-held view of sleep onset as an incremental process. The findings could enhance understanding and treatment of sleep disorders like insomnia.
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New research reveals that severe childhood hardships may increase levels of the protein SGK1 in the brain, potentially explaining lifelong mental health issues like depression. Scientists found higher SGK1 activity in the hippocampus of individuals with trauma histories, and inhibiting the protein in mice reduced stress effects. This discovery could lead to targeted treatments, though human applications remain distant.