×
GreekEnglish

×
  • Politics
  • Diaspora
  • World
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Cooking
Thursday
22
Jan 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

“Denmark escalates military tensions in the Arctic”, Russia says of troop deployment in Greenland

Greenland: Now is not the time to talk about independence, says Prime Minister

Danish and Greenlandic Foreign Ministers meet Vance and Rubio at the White House on Wednesday

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

EODY: Seven deaths from flu in the last week and 23 hospitalisations in intensive care units

January 22, 2026

Guilfoyle: A ‘window’ for US–Europe agreements

January 22, 2026

Oscars 2026: Four nominations for Yorgos Lanthimos’ Bugonia

January 22, 2026

EKPA is among the top universities in the world and first in Greece

January 22, 2026

Fourth censure motion fails as Von der Leyen holds her ground

January 22, 2026

The old Acropolis Museum reopens, revealing the hidden life of the sacred rock

January 22, 2026

How old are your lungs? The simple at-home test that gives the answer

January 22, 2026

HAI & IAI integrated Kentavros into BARAK MX – Greece’s air defense landscape is changing

January 22, 2026
All News

> Environment

Where insects go in winter

Life slows down, forms change, and survival takes priority until spring returns

January 16, 2026

Scientists uncover why the moon has a “two-faced” nature

January 15, 2026

Striking discovery about beaked whales: How sounds reveal the secrets of the most mysterious whales

January 14, 2026

Who were the predators on Earth before the dinosaurs

December 31, 2025

Where bees go in winter

December 30, 2025
Homepage
PERSONAL DATA PROTECTION POLICY COOKIES POLICY TERM OF USE
Powered by Cloudevo
Copyright © 2026 Πρώτο Θέμα