# How to Adapt Movement to Hormonal Changes So That Exercise Delivers Results and Doesn't Cause Harm
Anyone who has ever felt full of energy one day and a few days later as if someone pulled the plug has probably experienced firsthand the influence of hormones on the body. Hormones are silent directors that affect practically everything – from mood to sleep quality to how the body responds to exercise. Yet surprisingly little is said about the relationship between hormones and exercise. Most training plans operate as if the body were a machine with constant output. But it isn't. And that's exactly why it's worth understanding how to adapt movement to hormonal changes so that exercise brings joy, results, and above all, does no harm.
This topic is far from concerning only women in menopause, as it might seem at first glance. Hormonal fluctuations accompany puberty, the menstrual cycle, pregnancy, the postpartum period, perimenopause, but also the male decline in testosterone in middle age or chronic stress, which can throw anyone's hormonal balance off regardless of age and gender. So how can we approach movement more intelligently?
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Why hormones determine how the body responds to exercise
Imagine a situation that many women know well: during the first two weeks of their cycle, they feel strong, motivated, can handle a demanding workout, and recovery goes smoothly. Then the second half of the cycle arrives and suddenly everything is different – muscles are more fatigued, motivation drops, the body retains water, and even a lighter workout seems like a superhuman effort. This isn't about laziness or lack of willpower. It's about hormonal changes and active movement, or rather, how closely these two things are connected.
In the first phase of the menstrual cycle, the so-called follicular phase, estrogen levels rise. Among other things, estrogen promotes muscle sensitivity to insulin, improves glycogen utilization, and increases the body's ability to build muscle mass. The body is naturally prepared for more intense exertion during this time – strength training, interval training, or more demanding cardio. Conversely, after ovulation, in the luteal phase, progesterone dominates, which has a more suppressive effect. Body temperature rises slightly, metabolism speeds up (the body burns more calories at rest), but at the same time performance decreases and the need for recovery grows. It's precisely in this phase that it makes more sense to incorporate yoga, walks, swimming, or lighter training focused on mobility.
This principle is also confirmed by expert studies. For example, a review study published in the journal Sports Medicine in 2020 analyzed the influence of the menstrual cycle on athletic performance and concluded that performance may be slightly reduced in the early luteal phase, although individual differences are considerable. The key message? It's not about stopping exercise, but adapting the type and intensity of movement to your current hormonal state.
And it's not just about the menstrual cycle. The hormone cortisol, which the body releases under stress, has an enormous impact on exercise. Chronically elevated cortisol levels slow recovery, promote fat storage in the abdominal area, disrupt sleep, and can lead to overtraining even with relatively moderate exertion. A person going through a demanding period in life – work stress, lack of sleep, emotional strain – should handle exercise more carefully, even if their "rational mind tells them" they should push to the max. The body doesn't distinguish between stress from work and stress from training. For the body, it's simply stress.
The thyroid gland works similarly, with its hormones regulating metabolism. With reduced thyroid function (hypothyroidism), a person feels tired, gains weight, and recovery takes longer. Conversely, with hyperthyroidism, heart rate may already be elevated at rest, and intense exercise places unnecessary strain on the cardiovascular system. In both cases, movement is important, but its form must correspond to the current state of the organism.
The case of testosterone is also interesting – it declines in men from approximately the age of thirty at a rate of about one percent per year, as noted by Harvard Medical School. Lower testosterone means slower muscle mass gain, longer recovery, and greater susceptibility to injury. Men in middle age who train the same way they did in their twenties often wonder why results aren't coming or why they're plagued by joint pain. The answer often lies precisely in hormonal changes that require adjustments to the training approach – more emphasis on movement quality, mobility, and recovery, less on absolute volumes and maximum loads.
How to exercise during hormonal changes – practical principles for everyday life
Theory is useful, but most people are mainly interested in one thing: what to do about it? What does adapting movement to hormonal changes actually look like in practice?
Let's start with the most important principle: listening to your own body is not weakness, but strategy. When an athlete learns to perceive their body's signals and connect them with knowledge about hormonal cycles, they gain a tool that is more valuable than any training plan downloaded from the internet. As Dr. Stacy Sims, a New Zealand scientist specializing in female physiology in sport, said: "Women are not small men." By this she meant that applying male training templates to the female body without regard for the hormonal cycle is not only ineffective but can be counterproductive.
In practice, this might look something like this: Markéta, a forty-year-old woman who had been running and attending group classes her whole life, began noticing during perimenopause that after intense training she was exhausted for several days, slept poorly, and felt irritable. Instead of pushing harder – as her instinct, trained by years of "no pain, no gain" mentality, told her – she tried changing her approach on the recommendation of a physiotherapist. Two days a week she incorporated strength training with an emphasis on large muscle groups (squats, deadlifts, presses), which helps maintain muscle mass and bone density during a period of declining estrogen. She filled the remaining days with walking, yoga, and one lighter interval session. The result? Better sleep, more stable mood, less joint pain, and paradoxically even better body composition than when she had been training five times a week at maximum intensity.
This story illustrates an important point: during hormonal changes, less is often more. But that "less" needs to be smarter. Strength training is absolutely essential during hormonal transitions – whether it's perimenopause, the postpartum period, or declining testosterone in men. Muscles aren't just an aesthetic matter. They are metabolically active tissues that help regulate blood sugar levels, support bone health, and contribute to hormonal balance. Organizations such as the World Health Organization (WHO) recommend that adults do at least two days of strength training per week, and this applies doubly during periods of hormonal change.
Another key factor is recovery. Hormones directly influence how quickly the body recovers after exertion. During periods of hormonal imbalance – whether it's high cortisol from stress, low estrogen in menopause, or fluctuating hormones after childbirth – recovery is slower, and underestimating it leads to overtraining, injury, or burnout. Recovery doesn't just mean lying on the couch. It includes quality sleep (ideally seven to nine hours), adequate intake of protein and micronutrients, active rest in the form of walks or stretching, and also attention to mental well-being.
We also cannot overlook the influence of movement on hormones themselves – the relationship works both ways. Regular movement helps lower cortisol levels, increases insulin sensitivity, supports endorphin production, and can positively influence sex hormone levels as well. Studies published in the Journal of Clinical Endocrinology & Metabolism repeatedly show that regular physical activity alleviates menopause symptoms, improves insulin resistance, and supports overall hormonal balance. But – and this is an important "but" – these benefits come from moderate exercise, not extreme exercise. Excessively intense training without adequate recovery can actually disrupt hormonal balance, a phenomenon known, for example, among female athletes suffering from so-called Relative Energy Deficiency in Sport (RED-S).
As for specific types of movement, there is no single correct recipe, but there are general principles that can help:
- Strength training two to three times a week is the foundation for maintaining muscle mass and bone density, especially after thirty.
- Walking is underrated but an extraordinarily effective form of movement that doesn't raise cortisol and supports recovery.
- Yoga and tai chi can help reduce stress, improve sleep, and support hormonal balance through activation of the parasympathetic nervous system.
- High-intensity interval training (HIIT) is effective, but during periods of hormonal imbalance it should be dosed carefully – once or twice a week is enough.
- Swimming and cycling offer cardiovascular benefits with lower joint stress, which you'll appreciate especially during periods when the body retains water or joints are more sensitive.
It's also important to mention that hormonal changes are not an excuse for inactivity, but a reason for a smarter approach. A sedentary lifestyle deepens hormonal problems – it worsens insulin resistance, raises cortisol levels, accelerates muscle mass loss, and worsens mood. Movement is one of the most powerful tools for managing hormonal changes better. It's just necessary to accept that the form and intensity of that movement can and should change depending on what the body is currently going through.
For those who aren't sure where to start, it can be helpful to keep a simple journal – noting how you feel on a given day, what type of movement you chose, and how the body responded to it. After just two or three months, patterns usually emerge that help with better training planning. There are also apps for tracking the menstrual cycle that allow you to link hormonal phases with a training plan – for example, popular apps like Clue or FitrWoman, which were developed in collaboration with scientists.
In closing, one thing is worth reflecting on: society often teaches us that toughness and discipline are the highest virtues in fitness. But true wisdom lies in adaptability. The body changes – with age, with stress, with life circumstances, with hormones. And movement that respects these changes is not a compromise. It's the smartest strategy for staying active, healthy, and satisfied throughout life. Because ultimately, it's not about exercising as much as possible, but exercising in a way that truly benefits the body.
