Complete guide to menopause mood swings and PCOS

Have you ever watched the same drama and suddenly felt a lump in your throat, or had tears well up at a remark you would normally have laughed off? When days of being deeply hurt by trivial words continue, many people lie awake at night blaming themselves. They wonder why they've become so sensitive, or if their personality has changed. In clinical practice, these emotional changes are often not a personality flaw, but rather hormonal changes occurring within the body that are experienced as emotions. Today, we will connect menopausal mood swings and polycystic ovary syndrome under the single theme of hormones, to explore why your mind might not feel like your own, and what changes might be beneficial.

To understand emotional changes, it's helpful to know about three hormones:

• Estrogen (female hormone) is associated with mood regulation.
• Cortisol (stress hormone) is a signal that amplifies sensitivity.
• Progesterone can be likened to the brain's calming button.

While female hormones are often associated only with pregnancy or childbirth, they are also linked to neurotransmitters like serotonin and thus play a role in mood regulation. This is why, at certain times, one might feel more sensitive than usual, be deeply hurt by trivial remarks, cry easily, and experience increased anxiety.

There's an important point to note here. These symptoms tend to be more pronounced not simply when female hormone levels are low, but when their levels fluctuate up and down.

Significant hormonal fluctuations are observed in women during perimenopause, and studies report that cortisol responses are more pronounced, especially in those with a history of depression. The key is to first recognize that the brain has detected changes and entered a sensitive mode.

Cortisol, the second axis, is not a "bad" hormone but rather one that protects us in stressful situations. However, around menopause, the pattern or response of cortisol can change, which may manifest as sensitivity, sleep disturbances, and anxiety.

In the clinic, many patients say they get angry if their husband doesn't do the dishes, or that they scare themselves. In such cases, I explain that it might not be a loss of patience, but rather changes occurring in the body. Indeed, during perimenopause, cortisol levels are reported to be influenced by menopausal stage, symptoms, stress, and health factors. An excessive cortisol response can adversely affect memory, concentration, sleep, and mood regulation.

Shall we take a moment to regulate our breathing? Slowly inhale while counting to four, and exhale slowly while counting to six. Simply slowing down your breathing can help reduce tension signals in your body.

The third is progesterone, which is associated with calming effects. It is linked to GABA receptors in the brain, and there are many studies on its role in mood, anxiety, and tension; it's easy to understand it as the brain's calming button. Menopause can be seen as a time when this button doesn't function as effectively.

Not only during menopause, but many also experience unusual anger before menstruation. Things that are normally tolerated can feel much more significant before a period. If symptoms are severe enough to interfere with daily life, it could be premenstrual dysphoric disorder (PMDD), so it's advisable to seek medical consultation rather than enduring it alone.

Ask first via chat if my symptoms are due to hormonal changes

I often receive questions about whether weight gain can be due to hormones. Many people report that their belly protrudes even though their food intake remains the same. Around menopause, fat tends to accumulate around the abdomen, and with the combination of sleep, stress, reduced activity, and metabolic changes, weight can increase more easily. It's not due to laziness, but rather your body beginning to move in a different direction.

A similar pattern is observed in polycystic ovary syndrome (PCOS).

Polycystic ovary syndrome is often associated not only with irregular periods or ovulation problems but also with insulin resistance, which can lead to easy weight gain and difficulty losing it. The mental health aspect is also important, with the American Society for Reproductive Medicine recommending regular screening. It is closer to the standard of care to consider both body and mind, not just a condition focused solely on menstruation.

So, where should you start? While medication and treatment are important, realistically, the most fundamental step is getting good sleep. While sleep alone won't solve everything, many studies suggest that a stable sleep rhythm can alleviate stress responses and aid in mood regulation.

• Exposure to morning sunlight helps regulate your biological rhythm and aids in serotonin production.
• Many find that feeling their body comfortably cool down before sleep helps with slumber.
• Reduce excessive light and stimulation starting an hour before bedtime.

I also frequently receive questions about hormone therapy, specifically whether it solves everything. It's difficult to say it's the same for everyone, but hormone use in menopausal women has been observed to alleviate cortisol responses in mild stress situations. However, decisions must consider individual circumstances, underlying conditions, risks, and symptoms, and there can be individual differences.

First, maintain a consistent sleep rhythm and expose yourself to morning sunlight to align your biological clock. Second, incorporate light strength training and protein intake, but if you feel lethargic, try starting small, even for just one minute. Third, caffeine and alcohol can amplify emotional swings, so don't rely on a drink if you can't sleep or feel depressed. Fourth, if feelings of depression persist for more than two weeks, or if sleep is severely disrupted, or if daily life becomes difficult, do not delay seeking medical consultation. Fifth, regular medical check-ups are also recommended for those with polycystic ovary syndrome.

The most important message I want to convey today is that the changes you're experiencing might not be your fault, but rather hormonal shifts. During times of bodily change, management methods should also adapt. If symptoms are concerning, I recommend consulting with a specialist to find a suitable approach rather than enduring it alone.

You can find more about the overall flow of menopausal changes in Summary of Menopausal Body Changes, Symptoms, Causes, and Mechanisms, and about polycystic ovary syndrome in Understanding Polycystic Ovary Syndrome (PCOS) with One Keyword. If your sleep has been particularly disrupted, also read Menopause, Insomnia, and Sleep Stories.

By: Lee Dong-hee Chief Director · Obstetrician and Gynecologist · View Medical Team Profile

This article is based on the content of a YouTube video · First published on February 5, 2026 · Last reviewed on May 30, 2026

This article provides general health information and is not a substitute for individual diagnosis or treatment. If you have symptoms, please consult with a doctor.