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British scientists have discovered that morning after day, which naturally works and works better in the morning, have less chances of having breast cancer.
Researchers at the University of Bristol say that the reason why.
The results of the research are important because, according to them, they refer to all women.
Scientists say the new study, which was presented at a cancer conference in Glasgow, contributed to a better understanding of the effects of sleep on health.
Internal clock
They all have an inner clock for the body that determines the body rhythm for 24 hours. This is also called a coronation rhythm.
Rhythm affects the whole body – from when it will contribute to us, how we feel, and to the chance to get a heart attack.
However, the body is not displayed at the same time.
Ranoranioci, known as the "morning type" of people, get up early, work the best afternoon, and move early in the evening.
Nightvish or "evening type" is hard to get up in the morning, the most productive in the afternoon and evening hours and most likely will later go to bed.
What kind of relationship does breast cancer have?
Scientists say there is a connection. In the research, they used a new and very smart way of data processing – the so-called. Mendelian randomization.
They first analyzed the segments of human DNAs that control whether someone would be a rancher or a nightmare.
At that time, the data collected were used in an experiment involving more than 180,000 women involved in the British Biobank Project (UK Biobank project) and nearly 230,000 women who participated in the research of the International Consortium of Associated Breast Cancer (Consortium of the Breast Association).
In this way they have shown that women who are genetically programmed to naturally get up early have less chance of getting breast cancer than night time.
These DNA segments – a total of 341 – are adapted from birth and have no connection with other known causes of cancer, such as excessive obesity. This means that scientists can say with great certainty that the body clock affects the cancer.
What it means?
In the United Kingdom, one in seven women will have breast cancer during their lifetime.
But this latest research involves only the short, eight-year lifespan of each of the involved women. It turned out that in these eight years, one in a hundred breast cancer patients will get breast cancer. Overnight this relationship is between two and a hundred.
Member of the research team at the University of Bristol dr. Rebecca Richmond told the BBC that these results can be of great importance because everyone in the world has to sleep, and bad habits can easily be changed.
"The previous study was concerned with the impact of night shifts on health. Our research shows that women are at increased risk," says Dr. Richmond.
Years and family health care are among the highest risk factors for breast cancer. British organization Kanser Reserch (Cancer Research UK) says about 25% of cases can be prevented.
What causes cancer?
Kancer: When online learning is useful
So, if you sleep better – you will not get cancer?
Things are not so simple.
Dr. Richmond tells the BBC it's early for official advice.
"We still need to find out why nightmares are at greater risk from early ages. We need to clarify this relationship well," explains Dr. Richmond.
"Is the problem in the body clock? Or maybe even the night worse, because they do not live in harmony with their timer, when they need to get up early in the morning to go to work? Or maybe the effect of a body clock on the hormone level in the body, system and metabolism also affect the risk of cancer? " Richmond.
Many questions are still waiting to be answered.
Are the scientists right?
Science never guarantees anything 100%, but these results fit into existing trends.
The World Health Organization has already warned that sleep disorders caused by night shifts at work can increase the risk of cancer.
Dr. Richard Berks from Brest Kanser Nau (Now breast cancer) says that the results of the new research are very interesting.
"They support an increasing number of evidence that there is a certain overlap between genetic predispositions for the risk of developing sleep and breast cancer, but further details of this link need to be explored."
Earlier similar studies have revealed the relationship between sleep and mental health, including the risk of schizophrenia.
Breast Clinic Surgeon Clinic Kiriona, who works at the University of Manchester, says Mendelian randomization, which was used in the new study, enabled scientists to investigate the causal relationship between breast cancer and various forms of sleep.
"These are interesting indicators that once again confirm that our body clock and the natural sleeping rhythm are associated with the appearance of breast cancer."
The results of the research were published on the bioReviews website.
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