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Hypersomnia is a neurological disorder of excessive time spent sleeping or excessive sleepiness.It can have many possible causes (such as seasonal affective disorder) and can cause distress and problems with functioning. [1]
[4] [5] Prior to the DSM, terms included minimal brain damage in the 1930s. [366] ADHD, its diagnosis, and its treatment have been controversial since the 1970s. [239] [367] For example, positions differ on whether ADHD is within the normal range of behaviour, [101] [368] and to degree to which ADHD is a genetic condition. [369]
Sleep stages are characterized by spectral content of EEG: for instance, stage N1 refers to the transition of the brain from alpha waves (common in the awake state) to theta waves, whereas stage N3 (deep or slow-wave sleep) is characterized by the presence of delta waves. [107] The normal order of sleep stages is N1 → N2 → N3 → N2 → REM.
Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep ...
Here, sleep doctors explain what’s normal and what isn’t. Plus, they give tips on what to do when it happens and you’re struggling to fall back asleep. Related: Sleep Experts Agree That This ...
Idiopathic hypersomnia (IH) is a neurological disorder which is characterized primarily by excessive sleep and excessive daytime sleepiness (EDS). [1] Idiopathic hypersomnia was first described by Bedrich Roth in 1976, and it can be divided into two forms: polysymptomatic and monosymptomatic.
ADHD medication tied to 19% lower death risk. An observational study conducted in Sweden, whose results appeared in JAMA in March 2024, further emphasized the positive impact of ADHD medication on ...
The occurrence of these two sequences of brain waves suggests that the disorder is linked to an “unstable vigilance level” throughout NREM sleep [9]. It has been noted that there is a complete absence of any EEG signs during or immediately after an intense rhythmic movement [ 10 ] .