Working late at night depletes yin energy
March 24th, 2009 by Helix Clinic | No Comments | Filed in Chinese medicine concepts, Western medicine, lifestyle, researchIn 2007, the International Agency for Research on Cancer (which is part of the WHO) listed shift work as a possible human carcinogen. This listing was based on studies that showed that shift workers are at a 48% higher risk of developing breast cancer than women who work regular daytime hours.
The body’s production of melatonin is reduced if night time is spent in artificial light. Melatonin acts to keep the biological clock ticking so that you are alert during the day and sleep at night, but is thought to also play a role in cancer protection.
There is evidence suggesting the night shift effect is also linked to reproductive health. A Danish study of 40000 women showed that night workers were more likely to have lower-weight babies or longer lasting pregnancies, potentially increasing the risks of still birth.
The ancient Chinese were keen observers of biological cycles, and used the language of yin and yang to describe their observations. They have long noted that staying up late or working into the night can deplete the ‘yin energy’, and over long periods of time, they also noticed that this deficiency can lead to fertility and reproductive problems or more serious illnesses such as cancer.
Tags: cancer, melatonin, yin energy

