Early Risers Less Likely To Develop Breast Cancer Than Night Owls

Early Risers Less Likely To Develop Breast Cancer Than Night Owls

Interestingly, the study also found that sleeping longer isn't necessarily better, as the analysis showed that women who slept longer than the recommended seven to eight hours per night increased their chances of being diagnosed with breast cancer by 20% per additional hour.

Cancer risks associated with a person's body clock and sleep patterns have been reported in previous research and the United Kingdom researchers wanted to explore sleep traits in more detail, as well as any genetic factors underlying this.

According to the statement, there are about 1.38 million new cases and 458,000 deaths from breast cancer each year, "as breast cancer is by far the most common cancer in women worldwide, both in the developed and developing countries".

Cliona Kirwan, consultant breast surgeon and researcher at the University of Manchester, said: "The use of Mendelian randomisation in this study enables the researchers to examine the causal effect on breast cancer of different sleep patterns". The findings, which were not peer-reviewed, were presented at the NCRI Cancer Conference in Glasgow, Scotland.

The team speculated that this mismatch may have its own impact on cancer risk, but making that connection will require more extensive research.

He noted they found a causal effect of increased sleep duration and sleep fragmentation on breast cancer from movement monitors worn by around 85,000 UK Biobank participants.

The research involving more than 400,000 women found "larks" have a breast cancer risk up to 48 per cent lower than "night owls". They used a clever new way of analysing data - called Mendelian randomisation.

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Their analysis revealed that women with a preference for mornings reduced the risk of breast cancer by 40%, compared with being an evening type. The Breast Cancer Walk, which centered at the Manhattanville College Campus and directed its way up to SUNY Purchase, totaled five kilometers.

And this is involved in breast cancer?

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

Dan Damon has been speaking to one of the researchers, Professor Richard Martin - an expert in cancer epidemiology from the University of Bristol.

So will a good night's sleep stop me getting cancer? Men and women of all ages are encouraged to check themselves for breast cancer as it can affect anyone.

"In terms of the implications of the research, it supports existing evidence that sleep patterns influence cancer risk, but it remains unclear how individual preferences for early or late rising interact with actual sleep behaviours", Moorthie wrote in an email.

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