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TL;DR: A 2026 mouse study in Psychopharmacology found that repeated dexamethasone, a synthetic glucocorticoid steroid, disrupted light-phase sleep and increased orexin-neuron activity, a wake-promoting hypothalamic signal, during sleep-to-wake transitions. Key…
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TL;DR: A 2026 review in BMC Psychiatry found 441 primary MRI and electroencephalogram (EEG), a scalp recording of brain electrical activity, mental-health biomarker studies, but most were small, cross-sectional, and concentrated in depression, making routine c…
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Connexin 36 Loss Disrupted Thalamocortical Synchrony TL;DR: Deleting connexin 36 left broad sleep architecture mostly intact but disrupted fast brain electrical rhythms measured by electroencephalography (EEG), along with sensory-response markers often discuss…
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Your Brain Gets Louder as You Sleep — So Why Does Sleep Feel Deeper? The Answer Is Dreams. TL;DR: Vivid, immersive dreaming makes sleep feel just as deep as complete unconsciousness—both rate identically—while the dim awareness of merely existing feels the sha…
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TLDR: A new method using sound to influence brain waves can help manage brain activity and affect how we fall asleep. Highlights: How It Works: This method, called Alpha Closed-Loop Auditory Stimulation (αCLAS), uses sound pulses timed precisely to brain waves…
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Binaural beats are an auditory illusion that occurs when two tones of slightly different frequencies are played in each ear. Some claim that binaural beats can synchronize and entrain brainwaves to match the difference frequency. But does scientific evidence s…
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New research reveals that the wake-promoting drug modafinil affects markers of sleep homeostasis differently depending on a person’s genetics. Key facts: Modafinil improved sustained attention in people with a certain gene variant but not others after sleep de…
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Suicide is a major public health problem, with over 700,000 people dying by suicide every year globally. Identifying factors that may indicate risk for suicidal thoughts and behaviors is an important area of research, as this could aid prevention and intervent…
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Researchers have discovered that the wakefulness-promoting drug modafinil causes changes in brain activity patterns when people are at rest. These findings provide new insights into how this medication works in the brain. Key Facts: Modafinil is a medication u…
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A new study found that taking a brief 15-minute walk outside provides more cognitive benefits compared to walking indoors. Specifically, the research showed that a short outdoor walk boosted attention, while an indoor walk did not. This highlights the importan…
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