For many women symptoms of PMS (Premenstrual syndrome) become so severe that they interfere with their normal activity. And though this condition is frequently met, experts still cannot give full explanation to this phenomenon or a right treatment.
The new findings were released in online BioPsychoSocial Medicine journal. The study conducted by Japanese researchers from the International Buddhist University in Osaka found that those who experience PMS symptoms may have a permanently depressed nervous system.
Tamaki Matsumoto, the leading author of the study analyzed how the activity of nervous autonomic system changes during menstrual cycle. During the research 62 women answered the questionnaires to find out their physical, emotional and behavioral state and also had their hormone level and heart rate variability measured.
After the tests, the team discovered that results of the women from control group with no or little PMS symptoms did not change during month. Those women who reported about PMS were found to have decreased autonomic and parasympathetic nerve activity. Women with severe PMS symptoms had low parameters during the entire month.
The findings of the study suggest that decreased nervous system activity may contribute to the appearance of PMS symptoms.
According to the American College of Obstetricians and Gynecologists, as much as 85 percent of women of reproductive age have at least one PMS symptom as part of their monthly cycle. The common symptoms of PMS include breast tenderness, fatigue, muscle pain, mood swings, irritability, difficulty to concentrate, depression, constipation and others.
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