Menstruation is a phenomenon unique to females and nearly universal experience in women's lives and is poorly understood. It is characterized by co-ordinated sequence of hormonal changes but the changes that occur in the distribution of hematological parameters and biochemical parameters have not been clearly established. The present study was undertaken with the following aim: i) To compare he...

OBJECTIVES Understanding the relationship between the menstrual cycle and pain can contribute significantly to our knowledge of pain processing in women. Many early studies suggested that pain sensitivity was enhanced during the luteal phase of the menstrual cycle relative to the follicular phase; however, these studies were often limited by small sample sizes, lack of ovulation verification, f...

Previous studies have indicated phase-related differences in HPA activity and amygdala responsiveness in women, such that the response to negative emotional images is reduced during high-estrogen phases of the menstrual cycle. Other research has indicated an opposite effect of exogenous progesterone, increasing amygdala activity at some doses. However, no study to date has assessed the response...

OBJECTIVE The purpose of the present study was to investigate autonomic tone during the follicular and luteal phases of the menstrual cycle using heart rate variability (HRV) and heart rate recovery (HRR) in healthy women. SUBJECTS AND METHODS Thirty women aged 22-37 years with regular menstrual cycles were included in the study. The HRV and HRR were measured at the follicular and luteal phas...

BACKGROUND Previous studies of the relationship between the menstrual phases and smoking behavior have been problematic, so the association of menstrual phases with smoking behavior and correlations among smoking, psychological and physical conditions in each phase of the menstrual cycle are unclear. METHODS To accurately examine the association between menstrual phases and the amount of smok...

This study investigated the fluctuations of autonomic nervous activities during the menstrual cycle. Twenty college females were tested for cardiovascular reactivity to mental challenge during both follicular and luteal phases across two menstrual cycles. Power spectral analysis of heart rate variability (HRV) was used to examine the autonomic nervous activities. At baseline, although heart rat...

Women suffering from infertility in association with mostly mild endometriosis were subjected to vaginal sonography of uterine peristalsis during the menstrual period, the early, mid- and late follicular phases, and the mid-luteal phase of the menstrual cycle. The data obtained were compared with those of healthy controls. Women with endometriosis displayed a marked uterine hyperperistalsis tha...

Vahabi S1, Ghafarzade M2, Lorzade N2, Moradkhani MR1, Frazan B1, Geranghadr P3 1. Assistant professor, Department of anesthesiology, Faculty of medicine, Lorestan University of medical sciences 2. Assistant professor, Department of gynecology, Faculty of medicine, Lorestan University of medical sciences 3. General practitioner Abstract Background: Postoperative nausea, vomiting (P...

The present study examined whether the advantage of females on L2 vocabulary recall and acquisition is partly as a result of estrogen secretion or not. In this regard, through volunteer and convenience sampling 15 intermediate EFL female participants aged between 23-31 were selected from the subject pool of 55 participants. The participants were studying at Iranian Language Center located in Ba...