Hormonal Imbalance

Estrogen belongs to a family of steroid hormones that acts almost everywhere: bones, skin, brain, blood vessels, and mucous membranes. Produced mainly by the ovaries, it regulates the female reproductive system while maintaining collagen for skin elasticity and protecting bone density. When estrogen declines, particularly during menopause, the physical and emotional effects are varied. Many people experience hot flashes, night sweats, disrupted sleep, and sudden mood swings. A deficiency also leads to thinner, drier skin, vaginal discomfort, and an increased long-term risk of osteoporosis. Conversely, an excess can cause heavy periods, breast tenderness, and water retention. 

Progesterone belongs to the progestogen family and works closely with estrogen to regulate the menstrual cycle and support pregnancy. Produced mainly by the ovaries after ovulation, one of its key roles is to prepare and maintain the uterine lining. Just before a period, estrogen and especially progesterone levels fall sharply. These rapid shifts can contribute to premenstrual symptoms (PMS), in part through their interaction with brain signalling systems such as serotonin and GABA. 

Progesterone also acts beyond the reproductive system. It has important activity in the brain and nervous system, where it is involved in neurological function. Its potential role in brain health, including neurological conditions and brain injury, is an active area of medical research. 

Testosterone belongs to a family of steroid hormones called androgens, which also includes DHEA and DHT. Although testosterone levels differ between men and women, the hormone plays important roles in both. It helps maintain muscle mass, bone density, sexual function, energy and neurological function. 

 When testosterone levels decline, these systems can be affected, contributing to changes in energy, muscle mass, libido and overall well-being. At the other end of the spectrum, excess androgen activity can contribute to acne, unwanted facial or body hair and thinning hair on the scalp. Like most hormones, testosterone works best within a physiological range, and that range is different for each sex. 

Insulin is a protein hormone that regulates blood sugar and cellular energy by signalling cells to take up glucose from the bloodstream. When cells become less responsive to insulin, insulin resistance develops, prompting the pancreas to produce more insulin to compensate. 

In women, excess insulin can stimulate the ovaries to produce more androgens, disrupting ovulation and contributing to abdominal weight gain. In men, insulin resistance can lower testosterone levels and increase visceral fat. This fat tissue can convert testosterone into estrogen, potentially reinforcing the hormonal and metabolic imbalance. Over time, this cycle can contribute to erectile dysfunction, muscle loss and severe fatigue. 

Conversely, a severe lack of effective insulin means that cells cannot properly use glucose for energy. This can lead to chronic exhaustion, muscle wasting and, when severe or prolonged, tissue damage. 

Thyroid hormones, primarily T3 and T4, belong to a family of tyrosine-based compounds that act as the master regulators of cellular metabolism. Produced by the thyroid gland under the control of the brain, they set the baseline pace for your heart rate, digestion, and body temperature. When these hormones decline (hypothyroidism), the entire metabolism slows down, commonly causing chronic fatigue, unexplained weight gain, severe brain fog, dry skin, and hair loss. Conversely, an excess of thyroid hormones (hyperthyroidism) forces the body into overdrive. This metabolic acceleration triggers extreme restlessness, rapid weight loss despite increased appetite, heat intolerance, muscle weakness, and a racing heartbeat. 

Cortisol belongs to the glucocorticoid family of steroid hormones and serves as the body’s primary survival and stress responder. Produced by the adrenal glands under the strict control of the brain's negative feedback loop, it naturally peaks in the morning to wake you up and helps regulate blood pressure, immune responses, and inflammation. When physical or emotional stress becomes chronic, cortisol levels remain elevated, disrupting your natural circadian rhythm and causing severe sleep disturbances. This prolonged excess alters fat storage by encouraging weight gain specifically around the midsection, breaks down muscle tissue, and downregulates the production of progesterone and thyroid hormones. Conversely, a severe depletion of cortisol leads to profound exhaustion, low blood pressure, and a total inability to handle daily stress. 

Perimenopause is the transition that leads up to menopause. It typically begins around age 40 to 45 and can last anywhere from 4 to 10 years. During this time, estrogen and progesterone fluctuate rather than simply decline, which is why symptoms can come and go. You might notice irregular periods, the first hot flashes, disrupted sleep, mood swings or worsening premenstrual symptoms, often while your periods are still present, which is why many people are surprised to learn they have already entered this stage. It is a normal transition, but the symptoms are real and can be supported. 

Menopause is confirmed after 12 consecutive months without a period, on average around age 51. From this point, estrogen stays low for good rather than fluctuating. The lasting drop in estrogen explains symptoms such as hot flashes, sleep changes, and shifts in skin and intimate comfort. It also quietly affects bone strength over time, which is one reason it is worth discussing with a professional rather than simply waiting it out. 

Often described as the male counterpart to menopause, andropause reflects the gradual decline of testosterone in men, roughly 1 percent per year from around age 30 to 40 onward. Because the change is so slow, its signs are easy to put down to simply getting older: lower energy and libido, mood changes, loss of muscle with a tendency to gain fat around the middle, and sometimes poorer sleep or erectile changes. Unlike menopause, there is no single clear moment, which is exactly why it is so often overlooked. 

PMOS, or polyendocrine metabolic ovarian syndrome, was previously known as PCOS, or polycystic ovary syndrome. It is one of the most common hormonal conditions in women of reproductive age, and it is more than an ovarian issue: it is a whole-body condition that combines elevated androgen activity with insulin resistance. That combination is why it can show up in several ways at once: acne (often along the lower face and jaw), unwanted facial or body hair, thinning hair on the scalp, irregular or absent periods, weight that is hard to manage, and difficulty conceiving. Because it is a medical diagnosis, it is worth confirming with a healthcare provider, who can then help manage both the underlying condition and its visible effects. 

PMS refers to the physical and emotional symptoms that appear in the days before a period and ease once it begins, driven by the rapid hormonal shift after ovulation. Common signs include irritability, anxiety, fatigue, bloating, tender breasts, headaches, food cravings and premenstrual breakouts. When symptoms are severe or disrupt daily life, a more intense form is known as premenstrual dysphoric disorder (PMDD), medical guidance can help. 

Irregular, heavier, lighter or missed periods are often the first clue, especially during perimenopause or with PMOS, when ovulation becomes less regular. 

When androgen activity rises, the skin’s oil glands become more active and hair follicles more sensitive, leading to breakouts (often along the lower face and jaw) and unwanted facial or body hair.

Shifts in androgens and a drop in estrogen can push more hairs into their shedding phase or shrink the follicle, leaving hair on the scalp looking finer or less dense.

Hormonal shifts change how the body stores fat and uses energy, so lower estrogen or testosterone, an underactive thyroid or insulin resistance can make weight, particularly around the middle, harder to manage. 

Lower estrogen or testosterone can reduce libido; in women, the drop in estrogen can bring vaginal dryness and discomfort, and in men, testosterone changes can affect erectile function.

Because hormones govern ovulation, an imbalance such as PMOS can make cycles irregular and conception more difficult.

Hormones interact with brain messengers like serotonin, so an imbalance can bring irritability, low mood or anxiety, along with disrupted sleep and the night sweats common at menopause.

Hormonal fluctuations, especially around the menstrual cycle, can affect digestion and contribute to bloating and changes in comfort.

Beyond breakouts, the fall in estrogen reduces collagen and hydration, which can leave skin feeling thinner, drier and less firm over the years around menopause.