Study finds that morning people are less likely to get breast cancer

Henrietta Brewer
November 9, 2018

Women who are "morning people" are less likely to develop breast cancer than those who function better at night, a new study suggests.

The morning people had a reduced risk of more than 40%, compared to the night owls. What's more, every additional hour slept after the recommended eight-hour sleep was associated with a 20 percent increase in risk.

"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", said Rebecca Richmond.

In a final note to wrap up the series of activities, Hospital Manager, Mrs. Wilhelmina Banful said Medifem embarked on the activities as part of efforts to raise awareness on breast cancer which is killing many people especially women in Ghana and urged the general public to go for regular screening.


As reported by Sarah Knapton from the Telegraph, the research was funded by Cancer Research UK and the Medical Research Council and presented at the NCRI Cancer Conference in Glasgow on 5 November.

The study did not prove a cause-and-effect relationship between sleeping patterns and breast cancer risk.

"We also found some evidence for a causal effect of increased sleep duration and sleep fragmentation on breast cancer", she added.

The team used a method called Mendelian randomisation, which uses genetic variants associated with possible risk factors for breast cancer, such as sleep characteristics, to see whether they are involved in causing disease.


That's according to European researchers looking at International Genetic Data. "We would like to use genetic data from large populations to further understand how disrupting the body's natural body clock can contribute to breast cancer risk", she said.

Being a morning person is partly down to genetics, so this lowered risk does make some sense. The Breast Cancer Walk, which centered at the Manhattanville College Campus and directed its way up to SUNY Purchase, totaled five kilometers.

The World Health Organization and its global partners have therefore dedicated October as Breast Cancer Awareness Month; a worldwide annual campaign involving thousands of organisations, to highlight the importance of breast cancer awareness, diagnosis and research.

Scientists at Bristol University, UK, have found that something as simple as your internal body clock (or circadian rhythm) can play an important role in how likely (or not) you are to be diagnosed with cancer. "I wouldn't support that women should get up earlier to reduce risk of breast cancer".


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