Sleep and the Brain
Learn how brain signals, memory, sleep pressure, and neurological systems affect rest.
Brain chemistry and arousal
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Adenosine and Sleep
Adenosine helps signal sleep pressure, but it is not a simple chemical tank. Learn how it works, why caffeine masks it, and what the evidence can and cannot show. → 02Orexin
Learn how orexin stabilizes wakefulness, what cerebrospinal fluid testing can show in narcolepsy type 1, and why insomnia antagonists differ from investigational ago... → 03Alpha Waves and Sleep
Learn what alpha activity means on EEG, how it changes at sleep onset, and why brainwave training claims need careful evidence. →Memory and learning
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Memory and Sleep
Learn how sleep supports encoding, consolidation, and recall, why memory does not belong to one sleep stage, and when memory changes need medical attention. → 02Can You Learn a Language While Sleeping?
Learn why sleep supports language memories but cannot teach a usable language, what cueing studies found, and how to combine active study with healthy sleep. →Alertness and sleep pressure
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