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[HEALTH] · Greece, Germany · 4 sources

started · updated

Part of situation: Biological, developmental, and lifestyle influences on sleep (23 clusters)

Sleep health factors: gender, technology, and consistency

sleep quality adolescent health hormonal health smartphone usage circadian rhythm

Research and expert analysis highlight various factors influencing sleep quality and duration across different demographics. For women, hormonal fluctuations during the menstrual cycle and the 'mental load'—the ongoing cognitive processing of daily responsibilities—can impact rest. While claims suggest women may need 20 to 30 minutes more sleep, scientific data from the American Academy of Sleep Medicine indicates that healthy adults generally require at least seven hours, though individual needs vary.

In adolescents, smartphone use after 10:00 PM is linked to significant sleep disruption. A study of 425 teenagers showed that exceeding personal average phone usage late at night resulted in sleeping 20 minutes less on average and falling asleep 64 minutes later. The blue light and psychological stimulation from social media and notifications contribute to this delay.

Experts, including Professor Giorgos K. Sakkas, emphasize that healthy sleep requires a combination of duration, quality, and consistency. Most adults need 7–9 hours of sleep. Beyond mere hours, the American Heart Association notes that sleep continuity and regularity are vital for cognitive function, immune health, and metabolic regulation.

Entities

American Academy of Sleep Medicine · American Heart Association · Frontiers in Sleep · Giorgos K. Sakkas · University of Thessaly

Claims

What the coverage asserts, and how many sources carry each claim.

  • [○ 1 SOURCE] Most adults require between 7 and 9 hours of sleep per night. grtimes.gr
  • [○ 1 SOURCE] The American Academy of Sleep Medicine states healthy adults usually need at least seven hours of sleep per night. www.pink.gr
  • [○ 1 SOURCE] Adolescents using smartphones after 10:00 PM sleep an average of 20 minutes less. www.sbctv.gr
  • [○ 1 SOURCE] Women may experience insomnia more frequently, particularly after puberty. www.pink.gr
  • [○ 1 SOURCE] The American Heart Association identified sleep continuity and stability as key indicators of sleep health in 2025. grtimes.gr
  • [○ 1 SOURCE] Smartphone use after 10:00 PM can delay sleep onset in teenagers by 64 minutes. www.sbctv.gr

Sources

Χρειάζονται οι γυναίκες 20‑30 λεπτά παραπάνω ύπνο; Ο παράγοντας που δεν φαίνεται [www.pink.gr]
Ο καλός ύπνος χρειάζεται διάρκεια, ποιότητα και σταθερό ωράριο [grtimes.gr]
Χρήση smartphone μετά τις 10 μ.μ. κλέβει τον ύπνο εφήβων [www.sbctv.gr]
Το κινητό τηλέφωνο καταστρέφει τον ύπνο των εφήβων: Τι αποκαλύπτει μελέτη με ελληνική συμμετοχή [www.iatropedia.gr]