The 21st century is marked by the advent of ultra-modern technology, global commerce and trade and the unstoppable desire to move and live. Because of these factors, businesses compete in a world where they are active 24 hours a day, seven days a week.

The incident created demand for employees who work night shifts until dawn.

This work schedule reversed the lifestyle of the employees and turned the day into bedtime. The shifts impair the normal functioning of the body, disrupt the sleep cycle and lower the body’s serotonin levels.

Serotonin is a neurotransmitter found in the central nervous system and affects many functions such as mood, sleep, sex and appetite. This neurotransmitter also promotes cell regeneration.

Studies show that non-day shift workers have low levels of the “feel-good” hormone called serotonin. Researchers at the University of Buenos Aires, led by Pirola Carlos J, studied 683 men and compared 437 day laborers to 246 shift workers.

The serotonin level of shift workers measured by blood tests was significantly lower than the normal day schedule. In addition to low serotonin levels, high cholesterol, hip-to-waist ratio, increased blood pressure and high triglyceride levels were also found in shift workers.

Since the serotonin level maintains sleep patterns and other bodily functions, the University of Buenos Aires has suggested that shift work is also known as shift work sleep disorder. People with this disorder want to stay awake at bedtime.

These people can get very tired when they are awake. This disorder is caused by a work schedule that occurs during normal sleep. Because of this, people who have trouble sleeping because their body still has a waking program.

The sleep and wake time is different from the expectation of the body’s internal clock.

Other studies have shown that non-standard and night shift work affects the cardiovascular and metabolic systems. According to researchers from the Buenos Aires study these studies are likely to directly cause shift work to increase high blood pressure and body fat. In addition to disruptions in sleep patterns, low levels of serotonin are also associated with other conditions such as stress, anxiety and depression.

Lifestyle changes improve serotonin levels. To coordinate serotonin levels, sleep patterns must be consistent and there must be vitamins and minerals in the diet to regulate serotonin levels. Some medications and substances such as caffeine, nicotine, alcohol and antidepressants can eliminate serotonin production so they should be avoided.


People who want to improve their serotonin levels can use the drug to help with their goal. The amino acid 5-HTP can be taken as a supplement and improves the body’s ability to produce serotonin. Another amino acid called L-tryptophan is used by the body to produce serotonin.


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