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Biological Need for Naps: – Timing of sleep influenced by homeostatic sleep propensity and circadian rhythms – Homeostatic pressure to sleep increases after waking up […]

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Biological Need for Naps:
– Timing of sleep influenced by homeostatic sleep propensity and circadian rhythms
– Homeostatic pressure to sleep increases after waking up
– Circadian signal for wakefulness peaks in late afternoon
– Dip in drive for sleep during late afternoon creates a good time for a nap
– Difficulty in falling asleep before usual bedtime due to increased drive for wakefulness

Cultural Practices of Napping:
– Mediterranean, tropical, and subtropical regions commonly have long lunch breaks with naps
– Greece links napping to reduced risk of heart attacks
– Power nap concept recognized in the US, UK, and other countries
– Siesta practiced in colder regions like Patagonia
– Different names for power nap in Italy, Russia, and Egypt

Siesta in Spain:
– Decline in midday naps among working adults in modern Spain
– Survey shows diminishing daily nap trend among Spaniards
– Elderly and summer holidays see more siesta practice in Spain
– Siesta origins in Spain linked to avoiding midday heat and economic factors
– Siesta often confused with long lunch breaks but not directly related

Cardiovascular Benefits of Napping:
– Siesta associated with 37% reduction in coronary mortality
– Conflicting conclusions in studies on cardiovascular health and siesta
– Poor control of confounding variables like physical activity affects study outcomes
– Differences in physical activity habits of siesta-takers impact cardiovascular function
– Relationship between siesta and cardiovascular health not fully understood

Additional Resources and References:
– Various studies and research on the effects of napping on cardiovascular health
– References to articles and publications discussing the benefits and cultural aspects of napping
– Further reading materials on the haemodynamics and cardiovascular effects of daytime sleep
– External links to related media, audio files, research articles, and discussions on the decline and medical disadvantages correlated with napping.

Siesta (Wikipedia)

A siesta (from Spanish, pronounced [ˈsjesta] and meaning "nap") is a short nap taken in the early afternoon, often after the midday meal. Such a period of sleep is a common tradition in some countries, particularly those in warm-weather zones. The "siesta" can refer to the nap itself, or more generally to a period of the day, generally between 2–5 p.m. This period is used for sleep, as well as leisure, mid-day meals, or other activities.

A painting of a young woman taking a siesta. (The hammock, Gustave Courbet (1844))
People taking a siesta in a haystack, Lendava, Yugoslavia, 1957

Siestas are historically common throughout the Mediterranean and Southern Europe, the Middle East, mainland China, and the Indian subcontinent. The siesta is an old tradition in Spain and, through Spanish influence, most of Latin America and the Philippines. The Spanish word siesta derives originally from the Latin word hora sexta ('sixth hour', counting from dawn, hence "midday rest").

Factors explaining the geographical distribution of the modern siesta are warm temperatures and heavy intake of food at the midday meal. Combined, these two factors contribute to the feeling of post-lunch drowsiness. In many countries that practice the siesta, the summer heat can be unbearable in the early afternoon, making a midday break at home welcome.

Children taking a siesta at school in Trinidad de Cuba.
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