A Mid-Cycle Rise in Positive and Drop in Negative Moods among Healthy Young Women: A Pilot Study

Area of Science:

• Reproductive endocrinology
• Mood disorders
• Women's health

Background:

• Clinical studies often focus on premenstrual negative moods.
• Periovulatory increases in positive emotions and reproductive motivation are noted.
• The luteal phase mood drop may follow mid-cycle positive mood elevation.

Purpose of the Study:

• To compare positive and negative mood dimensions across the menstrual cycle.
• To investigate mood fluctuations in relation to hormonal changes.
• To test the ovulatory-shift hypothesis.

Main Methods:

• Prospective study of 60 healthy, normally cycling women.
• Mood assessment during early follicular, late follicular (fertile), and mid-luteal phases.
• Repeated Measures Multivariate Analysis of Variance (MANOVA) for mood dimensions.

Main Results:

• Significant increase in positive mood (cheerful, active) during the late follicular phase.
• Significant decrease in negative mood (anxious, depressed) during the late follicular phase.
• No significant mood differences between mid-luteal and early follicular phases.

Conclusions:

• Mood positively shifts mid-cycle, aligning with the ovulatory-shift hypothesis.
• Elevated positive emotions and motivation occur during the fertile window.
• Negative moods are not exclusively characteristic of the luteal phase.