Early rising women at lower risk of breast cancer

08 Novembre, 2018, 03:58 | Auteur: Yves Courtet
  • Lina Al Maeena with Jeddah United

A University of Bristol study has found a link between early risers and a lower risk of breast cancer.

Everybody has a body clock, which governs how the body works in a roughly 24-hour pattern.

Each of us has a circadian rhythm that is unique to us. Among morning larks, that figure was roughly one in 100.

"Larks" tend to go to bed and wake up early, and feel most productive earlier in the morning, while "night owls" feel drowsy in the morning and have the most energy later, making it harder for them to wake up early.

She tells the BBC: "We still need to get at what makes an evening person more at risk than a morning person... we need to unpick the relationship".

Does the pill give you breast cancer?

Researchers at the University of Bristol analyzed data from 180,215 women enrolled with the U.K. Biobank project, and 228,951 women who participated in genome-wide association study of breast cancer led by the global Breast Cancer Association Consortium.

The study highlighted individuals who were genetically predisposed to be either "larks" or "owls".

Femina, Médicis, Goncourt et Renaudot
Au fil de quatre étés, Nicolas Mathieu raconte la jeunesse dans une France ni tout à fait campagnarde ni vraiment urbaine. Nicolas Mathieu a été récompensé du prix Goncourt 2018 mercredi 7 novembre pour son roman Leurs enfants après eux .

" "Des médias américains retirent un spot " raciste " de la campagne Trump — USA
La chaîne NBC en avait fait autant et Facebook avait déclaré à l'AFP avoir également retiré cette publicité de sa plateforme. Il montre aussi des migrants enfonçant des portes grillagées.

Susan B. Anthony's grave decorated with 'I Voted' stickers
Anthony helped propel the women's voting rights movement forward in 1872 when she illegally voted on Election Day, resulting in her arrest.

How big is the effect?

Women have a one in eight chance of developing breast cancer and there are about 11,500 deaths from the disease annually in Britain. These genetic markers can show everything from "chronotype" (what times a person is most active) to risk of insomnia and the amount of sleep needed. According to Cancer Research UK, around a quarter of cases might be preventable. "Another limitation is that sleep timing preference (chronotype) is self-reported, and the investigation did not specifically recruit individuals with different sleep patterns, such as night-shift workers", Burgess wrote in the comments of the study. About 5 per cent of women with breast cancer have inherited a gene linked to the condition.

Is it something about the body clock itself?

Science is never 100% sure, but this fits with an emerging picture.

"We know already that night shift work is associated with worse mental and physical health".

Dr Rebecca Richmond, from Bristol, said: 'We would like to do further work to investigate the mechanisms underpinning these results, as the estimates obtained are based on questions related to morning or evening preference rather than actually whether people get up earlier or later in the day.

There are theories around the causes of sleep's effect on cancer, she said, such as the idea that artificial light at night leads to hormonal disruption.

The findings have been published on researchers' website bioRxiv but have not yet gone through scientific peer review.

Conseillé:



Populaire

The CW is Plotting a Reboot of The 4400 for 2019
He is also now the showrunner, executive producer, and writer on the upcoming CBS series "Blood & Treasure". Elmore's history includes work as a writer and co-executive producer on CBS' Limitless and FX's Justified .

Ligue des champions: Manchester United douche la Juve
Quatrième de Ligue 1, Lyon a pu compter sur Jason Denayer durant l'intégralité de la partie pour affronter à domicile Hoffenheim. Benfica (4) est troisième, tandis que l'AEK (0) est définitivement éliminé de la compétition .

Manu Tuilagi returns to England squad to face New Zealand
If it had happened on the Monday he would have probably been all right, but with someone like him, it was not worth risking, ' Youngs said.

Dan Crenshaw claps back at Pete Davidson after winning election
At least he acknowledged the actual cause of the injury. "I'm sorry, I know he lost his eye in war or whatever". Crenshaw, grateful for the win and eager to get to work, said he hopes more veterans run for Congress.

11-Novembre : Poutine et Trump discuteront "brièvement" à Paris, selon le Kremlin
Un conseiller du Kremlin a annoncé vendredi que les deux présidents se rencontreraient longuement en marge du sommet du G20. Ce bref entretien aurait lieu lors du déjeuner de travail organisé au palais présidentiel de l'Elysée.

Wales coach Gatland looks to Wallabies
Just because you get a knock to the face, it doesn't mean you're concussed. "It wasn't a concussion, it was a whack on the nose". North brushed aside three defenders to bag his 34th try for Wales in the first half and could have had a second.

Harry Roselmack dévoile le commentaire choquant après son premier JT
En revanche, Harry Roselmack s'est montré moins optimiste sur la diversité à la télévision française. C'est quelque chose qui m'a un peu étonné. "Ça les a amenés à considérer que c'était possible".

Dodgers GM Farhan Zaidi joins Giants as team president
Zaidi came with Andrew Friedman after the 2014 season to give the Dodgers one of the more progressive front offices in the majors. The Giants have replaced general manager Bobby Evans - who was sacked weeks ago - with Farhan Zaidi, the Giants have announced.

Fils de légende de la Formule 1 a dépassé son père
Nul doute qu’elle offrira à Mika la meilleure option pour poursuivre sa carrière dans le sport automobile. Et il n'est pas Andrei Arshavin, pour répondre à la question sur les attentes facilement et naturellement.

Votre voiture doit être dans un état impeccable
En ce qui concerne la sécurité, le choix des pneus parfaitement adaptés est extrêmement. Mais tout d’abord, vous devez savoir où trouver les pièces compatibles avec votre voiture.