Did you know…

Did you know…

During slow or deep sleep parasympathetic activation is dominant, with decreased sweating and loss of psychogalvanic responses. Decreased mean heart rate, blood pressure and cardiac…

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Endogenous circadian rhythmicity is a property common to many organisms, from fungi to animals. Although there is some variability, the operation of the biological…

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Endogenous clocks are usually synchronized with the outside day, by means of environmental stimulation. The ability of behavioural adaptation to environmental conditions confer selective…

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The most frequent sign of sleep disorders is undoubtedly excessive sleepiness. Patients complaining of insomnia, non-restorative sleep, hypersomnia or those with poor sleep hygiene…

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Rhythmic myoclonic jerks arising during sleep in the arms and legs of infants start on the first day of life and disappear by six…

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The elderly have increased sleep problems. First, there is the belief that one should sleep. Older adults need less hours of sleep, i.e. five…

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Nocturnal cramps are pains caused by spasms or muscle contractions in the muscles of the leg and foot, which may persist as residual discomfort….

Teresa Paiva explains…

Nightmares in children are in principle normal, but if they are frequent or very distressing, there may be the need for psychotherapeutic support and…