Tag Archives: shift work

How Shift Work Disrupts Metabolism

This time it’s personal. A hundred years ago, it seems (actually it was 1977), I worked for Reuters News Service. I had the good fortune, I thought, of being sent to London to experience the international news desk. That turned out to be a wonderful educational as well as professional experience. However, part of my deal was that since I was the Yank who was only there for a year, they used me to fill every staffing vacancy that came up. As a result I often worked two or three different shifts in a week. I have to tell you that I have never felt so discombobulated in my life. I would wake up and not know if it was morning or night. All my body rhythms got fried. So, I really related to the following study.

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Researchers report metabolic disruptions often seen in shift workers are not influenced by the brain’s circadian rhythm, but by peripheral oscillators in the liver, gut and pancreas. Source: Washington State University.

Working night shifts or other nonstandard work schedules increases your risk of becoming obese and developing diabetes and other metabolic disorders, which ultimately also raises your risk of heart disease, stroke and cancer.

Exactly why this happens has been unclear, but a new study conducted at Washington State University (WSU) has brought scientists closer to finding the answer. Continue reading

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Filed under brain, brain function, brain health, cancer, prostate cancer, shift work

Is It Possible to Reset Our Biological Clocks?

Since humans are fundamentally diurnal creatures, staying awake at night can significantly disrupt all of the body’s internal biological clocks. These disruptions are far from harmless: over the long term, they can lead to a high incidence of various health problems, such as metabolic or cardiovascular problems or even certain types of cancer.

Cooking with Kathy Man

Imagine being able to easily get over all of the discomfort and problems of jet lag or night-shift work. Science is not quite there, but recent work by Marc Cuesta, Nicolas Cermakian and Diane B. Boivin from the Douglas Mental Health University Institute and McGill University has opened new therapeutic avenues for improving the synchronization of the body’s different biological clocks.

Physiological changes over the course of a day are regulated by a circadian system comprised of a central clock located deep within the centre of the brain and multiple clocks located in different parts of the body.

This study, which was published in The FASEB Journal (published by the Federation of American Societies for Experimental Biology), included 16 healthy volunteers who were studied in temporal isolation chambers. These results show, for the first time, that the peripheral biological clocks located in white blood cells can be synchronized through the…

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