Perimenopause
The Female Body After 40
Are you in your forties and have recently found yourself wondering whether something is changing in your body?
Are you more tired than usual, sleeping less well, or noticing that your mood changes more quickly? Perhaps your menstrual cycle has changed too.
Many things can cause changes like these. But you may also have entered a stage of life known as perimenopause.
What Is Perimenopause?
For many women, perimenopause – the transitional period during which hormonal balance begins to change – starts after the age of 40. Progesterone levels begin to decline, while oestrogen levels may fluctuate considerably. These hormonal fluctuations can be behind a wide range of physical and emotional changes.
This period can last several years, usually between four and eight, before menopause occurs. Menopause is not a period of time, but a specific point in time: it is confirmed once 12 consecutive months have passed since the last menstrual period. The average age at which a woman reaches menopause is around 51.
How Does Perimenopause Begin?
The first signs of perimenopause are often very subtle: a slight change in the menstrual cycle, increased sensitivity, fatigue or difficulty sleeping. Over time, more noticeable symptoms may appear, such as anxiety or brain fog. Because of the stressful pace of modern life, these changes can easily be attributed to stress, exhaustion or ageing, when in fact they may be signs of perimenopause.
One of the first more noticeable changes is a shortening of the menstrual cycle. Cycles without ovulation may also occur, and bleeding can become heavier and last longer. During this period, hot flushes, heavy sweating, headaches and heart palpitations are not uncommon.
As oestrogen levels decline, mood changes may also begin to appear. In women who have experienced these symptoms before, they can sometimes become more pronounced. Feelings of sadness, depressive symptoms, irritability, anxiety and fatigue may occur.
Bloating and a feeling of pressure in the stomach may also appear, as hormonal changes can affect digestion and metabolism. Women may begin to gain weight as declining progesterone levels and metabolic changes affect the body, while lower oestrogen levels and elevated cortisol may increase insulin production, which can encourage fat storage and make weight loss more difficult. Body shape may also change, with more fat accumulating around the abdomen.
How Does the Menstrual Cycle Change?
Early stage: Menstruation is still regular, but the cycle begins to shorten. Mood changes, poorer sleep or feelings of anxiety may already appear.
Middle stage: The cycle becomes more irregular and may vary by more than a week from one month to the next.
Late stage: Menstrual periods become absent for longer stretches. The intervals between periods may reach 60 days or more.
As the number of eggs declines further during perimenopause, cycles begin to lengthen. In other words, cycles may shorten at first, then lengthen, and eventually menstruation may be absent for several months.
This stage is also characterised by bone loss, although the extent varies from woman to woman. Maintaining bone mass is influenced by a healthy body weight, sufficient starting bone density, greater muscle mass, regular physical activity, an adequate intake of protein, and sufficient vitamin D and calcium.
One of the largest long-term studies of women's health, SWAN, followed thousands of women for more than 15 years and found that bone loss begins to accelerate about one year before the final menstrual period. This period of accelerated bone loss continues for approximately two years after the final menstrual period, after which the rate of loss slows.
Although perimenopause cannot be prevented, we can influence how we move through it and how we manage some of its symptoms.
What Can Help?
📖 Education: Understanding perimenopause can help us recognise hormonal changes, reduce uncertainty and make timely decisions about prevention or treatment.
🏃♀️Regular physical activity: A combination of strength training, aerobic exercise, balance exercises and flexibility work is recommended. Exercise helps maintain muscle mass, slow bone loss, reduce the risk of cardiovascular disease, and improve sleep and mood.
🍽️Nutrition: A diet with sufficient protein, plenty of vegetables and fruit, whole grains, healthy fats, and an adequate intake of vitamins and minerals is recommended.
Calcium and vitamin D are important for maintaining healthy bones. Vitamin D supports calcium absorption and also plays an important role in immune function.
B vitamins, particularly B6 and B12, play an important role in nervous system function. Vitamin B6 is also involved in the production of neurotransmitters, while vitamin B12 is essential for normal nerve function and the formation of blood cells.
Magnesium plays an important role in nervous system and muscle function and is involved in numerous processes related to metabolism and energy production.
😴Quality sleep and stress management: Relaxation techniques, yoga, meditation and mindfulness can help reduce stress, improve sleep and support mood regulation.
📝Tracking symptoms: Keeping track of menstruation, how you feel, and any accompanying symptoms can help you identify patterns and better understand how your body is changing throughout perimenopause.
🤝 Social support: Talking with other women, your partner or joining a support group can reduce feelings of isolation and make it easier to navigate these changes.
💬 Talking to a healthcare professional: If symptoms become severe or significantly affect your quality of life, it is advisable to seek advice from a gynaecologist.
Perimenopause is not a loss of femininity, but a transition into a new stage of life.
Perimenopause can bring many challenges, but it can also be an opportunity for a woman to become more connected with her body and its needs. When she understands what is happening in her body, it becomes easier to adapt to the changes, maintain her well-being, and take better care of herself.
Sources
The Menopause Society – Perimenopause — changes in the menstrual cycle, shorter cycles in the early stages, variations in cycle length, and 60-day intervals in the later stage.
The Menopause Society – Symptoms — hot flashes, sleep disturbances, mood changes, weight changes, and other symptoms.
ACOG – The Menopause Years — definitions of perimenopause and menopause, hormonal fluctuations, and changes in the menstrual cycle.
STRAW+10 – Stages of Reproductive Aging — clinical classification of reproductive aging and criteria for the early and late menopausal transition.
Bone Mineral Density Loss in Relation to the Final Menstrual Period – SWAN
