Tuesday, 23 July, 2019

Women chirpiest in the morning less likely to develop breast cancer

Reham Afandi Reham Afandi
Gustavo Carr | 08 November, 2018, 03:58

The data from the BCAC group of participants showed that women who were morning types, also known as "larks", had a 40 per cent reduced risk of breast cancer compared with those who were evening types, or "owls".

The data also showed that women who slept longer than the recommended seven to eight hours a night had a 20 percent increased risk of breast cancer for each additional hour slept.

Led by Dr Rebecca Richmond at the University of Bristol, UK, along with the University of Manchester, the University of Exeter, and U.S. and Norwegian researchers, the large-scale study looked at data from taken from 409,166 women to investigate how a person's preference for mornings or evenings as well as their sleep habits may contribute to the development of breast cancer.

"More work is needed to understand why sleep characteristics may be linked to breast cancer risk". The findings, which have not been peer-reviewed, were presented at the NCRI Cancer Conference in Glasgow, Scotland, from Sunday through Tuesday.

Women who love the early hours of the day are less likely to develop breast cancer, a new study suggests.

Careem, one of the region's leading technology organizations, launched a breast cancer awareness campaign in partnership with the Qatar Cancer Society last October.

Experts not involved in the research welcomed the findings - although they cautioned that it was too early to change any behaviour until more research can be conducted. "For example, the genetic determinants of sleep may also affect other neuronal mechanisms that affect breast cancer risk independently of sleep patterns".

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Richmond stressed that the 48% lower risk was identified among "extreme" cases, where people identified themselves as "definite" morning people out of the five categories they could chose from - definite morning, more morning than evening, neither, more evening than morning, definite evening. She is a research fellow in the Cancer Research U.K. Integrative Cancer Epidemiology Program at the University of Bristol.

The study was funded by Cancer Research UK and the Medical Research Council.

"We know that sleep is important generally for health", said Richmond.

So will a good night's sleep stop me getting cancer?

Would you like to get published on Standard Media websites? She told 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".

"These are interesting findings that provide further evidence of how our body clock and our natural sleep preference is implicated in the onset of breast cancer".

About the NCRI Cancer ConferenceThe NCRI Cancer Conference is the UK's largest forum showcasing the latest advances in cancer research.