Mood fluctuations experienced by women throughout the menstrual cycle have biological roots and cannot simply be dismissed as "emotional" or "sensitivity." Scientific research shows that changing levels of estrogen, progesterone, and serotonin during the cycle deeply affect mood.
This article explores why mood changes occur at different phases of the menstrual cycle, the differences between PMS and PMDD, clinically significant symptoms, and recommended methods to balance mood.
1. How the Menstrual Cycle Works
The menstrual cycle lasts an average of 28 days and consists of four main phases:
1. Menstruation (Days 1–5)
- Estrogen is low
- Progesterone is low
- Serotonin fluctuates
This often leads to fatigue, difficulty concentrating, and low motivation.
2. Follicular Phase (Days 6–14)
- Estrogen starts to rise
- The brain is more alert, mood is more positive
This phase is often described as feeling energetic.
3. Ovulation (Days 14–16)
- Estrogen peaks
- Libido may increase
- Social motivation rises
Clinically, mood is most balanced during this phase.
4. Luteal Phase (Days 17–28)
This is when PMS symptoms begin.
- Progesterone rises
- Estrogen decreases
- Brain chemistry changes
- Serotonin may drop
Most mood swings occur during this phase.
2. Why Mood Changes? Scientific Mechanism
1) Estrogen – Serotonin Relationship
Estrogen is not just a reproductive hormone.
It directly affects serotonin receptors.
- High estrogen → Happiness, energy, social openness
- Low estrogen → Fragility, restlessness, decreased motivation
Therefore, feeling a "drain in life energy" before menstruation is normal.
2) Progesterone – GABA Relationship
Progesterone has a calming/sedative effect on the brain.
When excessively high:
- Inner anxiety
- Unexplained stress
- Impatience
- Absent-mindedness
- Feeling of losing control
These are natural effects of the hormone's inhibitory action.
3) Cortisol Increase
The body is more prone to stress in the final days.
Causes include:
- Progesterone fluctuations
- Blood sugar changes
- Sleep disruption
Environmental stressors feel twice as intense during PMS.
3. PMS or PMDD? Clinical Distinction
PMS (Premenstrual Syndrome)
Emotional and physical symptoms experienced before menstruation.
Symptoms:
- Tension
- Fragility
- Increased tearfulness
- Appetite changes
- Sleep irregularities
PMS affects about 75% of women.
PMDD (Premenstrual Dysphoric Disorder)
A much more severe form of PMS.
Symptoms:
- Severe emotional collapse
- Panic-like feelings
- Withdrawal from social life
- Impaired daily functioning
- Severe anger outbursts
Affects only 3–8% of women.
Treatment is required.
4. Clinical Findings on Mood Across the Cycle
According to studies:
- 64% of women feel more irritable in the luteal phase
- 57% have reduced concentration
- 46% experience lowered self-perception
- 35% withdraw socially
These symptoms are not "personality traits" but entirely linked to the biological cycle.
5. Clinically Recommended Supports to Balance Mood
1. Magnesium (Especially in Luteal Phase)
Reduces muscle tension and regulates sleep quality.
Clinical studies show up to a 30% reduction in PMS complaints.
2. Omega-3
Supports serotonin receptors in the brain.
Helps balance mood.
3. Blood Sugar Stability
Rapid drops in blood sugar can cause:
- Irritability
- Lowered tolerance
- Excessive emotional responses
Therefore:
✔ Protein
✔ Healthy fats
✔ Low glycemic carbs
are very effective.
4. Light Exercise
Even a 15–20 minute walk helps counteract progesterone’s inhibitory effect.
5. Reduce Caffeine
Especially in the luteal phase, caffeine can cause:
- Palpitations
- Tension
- Increased irritability
6. Sleep Earlier in Luteal Phase
Corrects the "tired mind – restless body" imbalance caused by progesterone.
7. Severe PMDD Cases
Professional support is required.
Effective interventions include:
- SSRI medications
- Cognitive behavioral therapy
6. Benefits of Cycle Tracking for Mood
Tracking the cycle provides improvements in:
- Knowing when emotional ups and downs will occur
- Planning more effectively
- Reducing social burdens during sensitive times
- Avoiding unnecessary self-pressure
- Reducing conflicts with partners
- Approaching children, spouse, family more appropriately
In short, it makes controlling mood easier.
7. When to See a Doctor?
Professional support is essential if any of the following occur:
- Anger outbursts
- Severe depression
- Inability to perform daily tasks
- Social withdrawal
- Hopelessness
- Suspected PMDD
- Severe PMS lasting 3 consecutive months
CONCLUSION
Mood changes during the menstrual cycle are not "emotionality" or "capriciousness"; they are a clinical reality directly linked to hormones and biology.
Understanding the cycle means understanding one’s own psychology.
This awareness strengthens mental health and improves quality of life.
