cancer link to graveyard shift

As grave as it is scientist that overnight work is dangerous because it disrupts the circadian rhythm, the body’s biological clock. The hormone melatonin which can suppress tumor development is normally produced at night. In 1987 Stevens published a link between light at night and breast cancer while he figures out why breast cancer suddenly shot up starting 1930s in industrialized societies. Night time work is considered as a hallmark of progress. Scientist believed having lower melatonin levels can raise the risk of developing cancer. Light shuts down melatonin production. If proven correct people working in artificial light at night may have lower melatonin production. Besides didn’t you know that our body needs complete darkness at night to rejuvenate and impend aging of skin? Even worse is flipping between daytime and overnight work. Not getting enough sleep makes your immune system vulnerable and less able to fight off potentially cancerous cells.



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Reference: http://edition.cnn.com/2007/HEALTH/11/29/night.shift.cancer.ap/index.html

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