×
GreekEnglish

×
  • Politics
  • Diaspora
  • World
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Cooking
Thursday
02
Apr 2026
weather symbol
Athens 12°C
  • Home
  • Politics
  • Economy
  • World
  • Diaspora
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Mediterranean Cooking
  • Weather
Contact follow Protothema:
Powered by Cloudevo
> World

How does sleep affect sperm quality?

A study in Denmark showed men have better sperm if they had 8 hours of sleep

Newsroom November 22 11:16

Men who go to bed early are more likely to produce better sperm, according to a new study by researchers at the University of Aarhus in Denmark, presented at the annual meeting of the European Society of Reproduction and Embryology (ESHRE) in Vienna.

The study reached the conclusion after examining the sleep patterns of about 100 male volunteers attending fertility clinics in Denmark. Of the participants, 48 ​​had healthy sperm and 56 had low sperm quality.

The data revealed that the men who sleep earlier than 10.30 pm are up to four times more likely to have better sperm quality, while those who sleep a total of eight hours a night are also more likely to have healthy sperm compared to those who sleep less than seven hours.

Lack of sleep, in fact, proved to be even more harmful, as, according to research, men who slept less than seven hours a night were six times more likely to have poor sperm quality.

Interpreting the findings of the study, experts in the field of fertility say that couples who want to conceive a child should try to reduce the distractions that may keep expectant parents awake at night, such as wasting time on cell phones or watching TV until late.

The fact is that sleep plays an important role in regulating hormones and stress levels, which can affect fertility. In addition, stress due to lack of sleep can cause hyperactivity of the immune system, which can indirectly damage sperm.

Hans Jakob Ingerslev, a professor at the University of Aarhus and one of the authors of the study, also examined the quality of sleep, without, however, finding any connection between sleep disorders and quality of sperm.

>Related articles

Negotiations begin to form a new government in Denmark

Clock change 2026: When we turn our clocks and lose one hour of sleep

“Obedient” women and “tough” men: Gen Z is turning back to…tradition, study shows

also read

Stefanos Tsitsipas to undergo elbow surgery, Italian media reports

 

Ask me anything

Explore related questions

#conception#denmark#men#sleep#sperm quality#study
> More World

Follow en.protothema.gr on Google News and be the first to know all the news

See all the latest News from Greece and the World, the moment they happen, at en.protothema.gr

> Latest Stories

France calls for China’s involvement in reopening the Strait of Hormuz

April 1, 2026

OPEKEPE: Details of the second case file for the “11+2” will determine immunity lifts and cabinet reshuffle

April 1, 2026

Cold War Greek Intelligence files declassified: The Communist threat, Iron Curtain parcels and Papagos’ “Guts”

April 1, 2026

Chaos at Heraklion Airport: Flight cancellations and stranded passengers due to African dust

April 1, 2026

Maria Karystianou announces her political party on the birthday of her daughter who died in the Tempi train crash

April 1, 2026

Trump: Iran asked for a ceasefire, open the Strait of Hormuz or we will send you back to the Stone Age – Tehran denies (updates)

April 1, 2026

Two defendants found guilty in revenge porn case involving Ioanna Touni

April 1, 2026

Strait of Hormuz will open, but only for those who comply with our terms, says Iranian official

April 1, 2026
All News

> Travel

Everything that happened at the Travel.gr Greece Talks conference – What Hatzidakis, Pierrakakis, Dimas and tourism professionals said

The Travel.gr Conference

March 13, 2026

Hydra in a day – A timeless seaside escape

February 18, 2026

Kimolos wins over International Media: “A hidden gem waiting to be discovered”

August 28, 2025

French Vogue discovers the exotic beauty of Skopelos

August 28, 2025

Naxos tops the list of Greek kitesurfing destinations for 2025

July 9, 2025
Homepage
PERSONAL DATA PROTECTION POLICY COOKIES POLICY TERM OF USE
Powered by Cloudevo
Copyright © 2026 Πρώτο Θέμα