Physiology of the menstrual cycle

Area of Science:

• Neuroscience
• Endocrinology
• Women's Health

Background:

• Female hormonal milestones including menarche, pregnancy, menopause, and hormone therapy alter sex hormone levels.
• These hormonal fluctuations can influence the occurrence and severity of headaches.

Purpose of the Study:

• To explore the relationship between female hormonal changes and headache patterns.
• To understand the role of sex hormones, particularly estrogen, in headache modulation.

Main Methods:

• Review of hormonal milestones and their impact on headache prevalence.
• Analysis of the neurobiological mechanisms involving estrogen, progestins, and central pain pathways.

Main Results:

• Estrogen withdrawal, not sustained levels, is identified as a primary trigger for menstrual migraines.
• Pregnancy (increased estrogen) and menopause (decreased estrogen) also affect headache patterns.
• Headaches associated with premenstrual syndrome may originate centrally, involving the central nervous system's pain-modulating systems.

Conclusions:

• Hormonal shifts throughout a woman's life are intrinsically linked to headache experiences.
• Understanding these hormonal influences is crucial for managing headaches in women.