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ZDRAVLJE 360

Health without miracles: prevention, sleep, movement, and how to read a medical study.

An AKTUAL MEDIA edition · GNK ASG network

Hrvatski

Sleep

Sleep: how much, why, and what breaks it

Sleep is not passive time. It is the part of the day when memory consolidates, hormones align and blood pressure drops. Shortage is not compensated with coffee.

ZDRAVLJE 360 — Sleep
Network notice. This is an independent edition inside the GNK ASG network. The main site is gnk-asg.hr; the list of all editions is at gnk-asg.hr/en/network. The publisher is AKTUAL MEDIA d.o.o., and every text in the network is listed at AKTUAL MEDIA — network of editions. Editor and director: Nermin Sefić.

This is not medical advice. The texts explain public-health guidance and how to read a study; decisions about treatment need a physician.

01A range, not a single number

Adults are usually advised 7–9 hours, but need varies. Consistency matters more than a single night: the same wake time and a regular rhythm mean more than a perfect hour count.

02What helps and what does not

A regular wake time, morning daylight and evening darkness help more than supplements. Alcohol sedates but fragments the second half of the night; a screen in bed delays sleep onset.

  • The same wake time, weekends included
  • Daylight in the first hour of the day
  • No caffeine within six hours of sleep
  • If you snore and are sleepy by day — talk to a doctor

Questions that keep coming back

Is eight hours a rule?

No. The adult range is usually 7–9 hours and individual need varies. Chronic sleep under six hours is associated with higher risk, but that is not a diagnosis.

Do sleeping pills help?

They can help short term but are not a solution for chronic insomnia and carry side effects. A physician decides, not a desk.

Sources

Every source below is public and checkable. Where a page cites a figure, the figure comes from one of these documents — and the document has a date.

  1. World Health OrganizationGuidelines on physical activity, nutrition and prevention.
  2. CDCPublic-health data and recommendations for adults and children.
  3. NIHResearch and plain-language explanations of medical studies.
  4. NHSPractical patient guidance, clearly dated.
  5. CochraneSystematic reviews that summarise multiple studies on one question.

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