Clipping Board » Research Report ─ The latest medical research reports and related news.
(Central News Agency, Taipei, 3rd)
The British "Daily Mail" reported that women who sleep less than six hours a day have a more than 60% increased risk of developing breast cancer.
This study, published in the "British Journal of Cancer," states that burning the candle at both ends significantly raises the likelihood of developing potentially fatal tumors.
Scientists believe that irregular sleep disrupts the body's secretion of the crucial hormone "melatonin," which plays an important role in cancer prevention.
Japanese scientists tracked the lifestyle habits of nearly 24,000 women for eight years. Their findings provide the strongest evidence to date that getting sufficient sleep is crucial in preventing breast tumors.
Researchers found that women who slept only six hours or less per night had a 62% higher risk of developing breast cancer compared to those who slept seven hours.
Women who averaged nine hours of sleep per night saw a 28% reduction in the risk of developing tumors.
Masako Kakizaki, who led the study, said: "We found a strong relationship between sleep duration and cancer. Those who slept six hours or less had a significantly increased risk of cancer."
When humans sleep, the brain secretes melatonin to regulate the biological clock. Researchers suspect that this hormone plays a key role in preventing breast cancer by controlling the secretion of estrogen, which is known to be linked to the development of many breast cancers.
Scientists from the Tohoku University Medical Research Institute in Sendai, Japan, studied data from women aged 40 to 79 who participated in a health and lifestyle survey, which included questions about sleep duration.
During the eight-year follow-up period, 143 participants were diagnosed with breast cancer.
When researchers analyzed the sleep habits of those who developed cancer, they found that going to bed late and waking up early had significant impacts.
The report cited the UK Cancer Research Center, stating that an increasing number of studies point to a link between insufficient sleep and cancer.
Dr. Scocro, the center's scientific information director, said: "Current evidence suggests that sleep and work patterns may have a slight influence on breast cancer risk."
He added: "But compared to known lifestyle risk factors such as weight, exercise, and drinking habits, the importance of this influence is still too early to determine."
Source: http://www. epochtimes. com/ b5/ 8/ 11/ 3/ n2318297. htm
New Study: Insufficient Sleep Increases Breast Cancer Risk in Women
The British "Daily Mail" reported that women who sleep less than six hours a day have a more than 60% increased risk of developing breast cancer.
This study, published in the "British Journal of Cancer," states that burning the candle at both ends significantly raises the likelihood of developing potentially fatal tumors.
Scientists believe that irregular sleep disrupts the body's secretion of the crucial hormone "melatonin," which plays an important role in cancer prevention.
Japanese scientists tracked the lifestyle habits of nearly 24,000 women for eight years. Their findings provide the strongest evidence to date that getting sufficient sleep is crucial in preventing breast tumors.
Researchers found that women who slept only six hours or less per night had a 62% higher risk of developing breast cancer compared to those who slept seven hours.
Women who averaged nine hours of sleep per night saw a 28% reduction in the risk of developing tumors.
Masako Kakizaki, who led the study, said: "We found a strong relationship between sleep duration and cancer. Those who slept six hours or less had a significantly increased risk of cancer."
When humans sleep, the brain secretes melatonin to regulate the biological clock. Researchers suspect that this hormone plays a key role in preventing breast cancer by controlling the secretion of estrogen, which is known to be linked to the development of many breast cancers.
Scientists from the Tohoku University Medical Research Institute in Sendai, Japan, studied data from women aged 40 to 79 who participated in a health and lifestyle survey, which included questions about sleep duration.
During the eight-year follow-up period, 143 participants were diagnosed with breast cancer.
When researchers analyzed the sleep habits of those who developed cancer, they found that going to bed late and waking up early had significant impacts.
The report cited the UK Cancer Research Center, stating that an increasing number of studies point to a link between insufficient sleep and cancer.
Dr. Scocro, the center's scientific information director, said: "Current evidence suggests that sleep and work patterns may have a slight influence on breast cancer risk."
He added: "But compared to known lifestyle risk factors such as weight, exercise, and drinking habits, the importance of this influence is still too early to determine."
Source: http://www. epochtimes. com/ b5/ 8/ 11/ 3/ n2318297. htm