Tuesday March 26, 2019

Eating Dinner Early May Lower Risk of Breast, Prostate Cancer

The research suggests that long-term late night snacking may have the similar effect to night-shift work and circadian disruption

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Family dinners can promote healthy eating habits in teenagers. Pixabay

Having your last meal before 9 pm or at least two hours before going to bed could lower the risk of breast and prostate cancer, suggests a new study.

Compared to those who have supper after 10 pm or those who go to bed right after meal, people who take their evening meal before 9 pm or wait at least two hours before going to sleep have approximately 20 per cent lower risk of those types of cancers, the findings showed.

“Our study concludes that adherence to diurnal eating patterns is associated with a lower risk of cancer,” said lead author Manolis Kogevinas from the Barcelona Institute for Global Health (ISGlobal) in Spain.

“The findings highlight the importance of assessing circadian rhythms in studies on diet and cancer,” Kogevinas added.

For the study, published in International Journal of Cancer, the team analysed data from 621 cases of prostate cancer and 1,205 cases of breast cancer, as well as 872 male and 1,321 female controls.

Having your last meal before 9 pm or at least two hours before going to bed could lower the risk of breast and prostate cancer
Having your last meal before 9 pm or at least two hours before going to bed could lower the risk of breast and prostate cancer. Pixabay

The participants, were interviewed about their meal timing, sleep habits and chronotype — an individual attribute correlating with preference for morning or evening activity.

The participants also completed a questionnaire on their eating habits and adherence to cancer prevention recommendations.

The researchers found that cancer patients were more likely to have dinner late at night.

Also Read: Meditation Improves Mood, Sleep in Teenagers with Cancer

Breast and prostate cancers are also among those most strongly associated with night-shift work, circadian disruption and alteration of biological rhythms.

The research suggests that long-term late night snacking may have the similar effect to night-shift work and circadian disruption.

“If the findings are confirmed, they will have implications for cancer prevention recommendations, which currently do not take meal timing into account,” Kogevinas noted. (IANS)

Next Story

Exposure to Dim Light Escalates Breast Cancer’s Spread to Bones

X-ray images showed that mice exposed to a light or dim light cycle had much larger tumours and increased bone damage compared with mice kept in a standard light/dark cycle

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Cancer
Cancer Ribbon. Pixabay

Exposure to dim light at night may contribute to spreading of breast cancer to bones, researchers have shown in an animal study.

When breast cancer spreads it often affects bones, cause severe pain and make them fragile. “To date no one has reported that exposure to dim light at night induces circadian disruption, which increases spread of bone metastatic breast cancer,” said Muralidharan Anbalagan, Assistant Professor, at Tulane University in New Orleans.

The findings were presented at ENDO 2019, the Endocrine Society’s annual meeting in New Orleans.

For the preliminary study, the team created a mouse model of bone metastatic breast cancer. They injected oestrogen receptor-positive human breast cancer cells, which have a low propensity to grow in bones, into the tibia (shinbone) of female mice.

Cancer patient
Cancer patient.

Like humans, mice produced a strong night-time circadian melatonin signal, shown to produce strong anti-cancer actions and for promoting sleep.

While one group of mice was kept in the light for 12 hours each day, the other group of three mice in the dark for 12 hours. Another group spent 12 hours in light, followed by 12 hours in dim light at night.

Also Read- Connecting to Free Wi-Fi can Expose your Data to Hackers

X-ray images showed that mice exposed to a light or dim light cycle had much larger tumours and increased bone damage compared with mice kept in a standard light/dark cycle, he noted.

“Our research identified the importance of an intact nocturnal circadian melatonin anti-cancer signal in suppressing bone-metastatic breast tumour growth,” Anbalagan said. (IANS)