WHAT THINGS HAPPEN DURING PERIMENOPAUSE?
Perimenopause, sometimes called the menopausal transition, commonly begins during a woman’s 40s, although some women notice changes earlier or later. During this stage, the ovaries begin producing hormones less consistently. Estrogen and progesterone do not necessarily decline in a smooth, predictable pattern. They may fluctuate considerably from one month to the next.
One of the earliest signs is often a change in the menstrual cycle. Periods may become shorter, longer, heavier, lighter, closer together, or farther apart. Some cycles may be skipped entirely. Although these changes can be normal during perimenopause, unusual, extremely heavy, prolonged, or concerning bleeding should still be discussed with a healthcare provider.
Other possible symptoms include:
- Hot flashes
- Night sweats
- Difficulty sleeping
- Changes in mood
- Reduced energy
- Brain fog
- Vaginal dryness
- Changes in sexual desire
- Joint or muscle discomfort
- Changes in body composition
- Increased difficulty managing weight
Every woman’s experience is different. Some notice only mild menstrual changes, while others experience symptoms that interfere with work, relationships, sleep, and exercise. Symptoms may also appear in different combinations or change over time.
Perimenopause can be especially confusing because periods may continue and symptoms may come and go. You might feel like yourself for several weeks and then experience disrupted sleep, low motivation, cravings, or fatigue without an obvious explanation. This unpredictability can make a workout or weight-loss program that once felt manageable suddenly feel much harder.
That does not mean progress is impossible. It may mean your approach needs to become more flexible. Strength training, adequate protein, balanced meals, regular movement, stress management, and sufficient recovery become increasingly important during this stage.
WHEN DOES MENOPAUSE OFFICIALLY BEGIN?
Menopause is reached after 12 consecutive months without a menstrual period. It is not the entire period of symptoms leading up to the final menstrual cycle. Instead, it marks the end of the reproductive years and the completion of the menopausal transition. The years following that point are known as postmenopause.
Symptoms do not always disappear immediately once menopause has been reached. Hot flashes, sleep disruption, mood changes, vaginal dryness, and other concerns may continue into postmenopause. The duration and intensity vary significantly between women.
The hormonal changes associated with menopause can also affect muscle, bone, and fat distribution. Women may notice that maintaining muscle requires more intentional effort or that weight begins accumulating more easily around the abdomen. Poor sleep and high stress can make these changes feel even more noticeable by affecting hunger, energy, food choices, and exercise consistency.
This is why relying only on intense cardio or aggressive calorie restriction can become counterproductive. A better strategy often emphasizes preserving lean muscle, eating enough protein, choosing nutrient-dense foods, and following an exercise routine that can be maintained even during lower-energy weeks.
Strength training is particularly valuable because it gives the body a reason to retain muscle. It can also support physical function, confidence, balance, and long-term independence. Walking and other forms of moderate cardiovascular activity can complement resistance training without placing unnecessary stress on the body.
Women who experience bleeding after menopause should speak with a healthcare professional rather than assuming it is a normal part of the transition. Symptoms that are severe, sudden, or disruptive also deserve proper medical attention.
TIME TO CHANGE YOUR FITNESS APPROACH
The difference between perimenopause and menopause matters, but the most effective fitness principles are helpful throughout both stages. Your plan should account for your current symptoms, fitness level, schedule, health history, and ability to recover.
Start by making strength training a central part of your routine. Rather than trying to burn as many calories as possible, focus on gradually improving your ability to squat, push, pull, hinge, carry, and stabilize. Progress may involve lifting more weight, completing more controlled repetitions, or improving your technique.
Protein should also be included consistently throughout the day. Protein supports muscle repair and helps meals feel more satisfying. It can be paired with fibre-rich carbohydrates, healthy fats, fruits, and vegetables to support energy and overall nutrition.
Sleep deserves the same attention as workouts. Night sweats, hot flashes, stress, and mood changes can make restful sleep more difficult during the menopausal transition. Poor sleep may increase fatigue and make cravings or skipped workouts more likely.
A realistic routine might include several weekly strength sessions, regular walking, light mobility work, and planned recovery days. The exact schedule matters less than whether it is appropriate for your body and sustainable over time.
It is also important to stop measuring success only through the number on the scale. Improvements in strength, energy, sleep, consistency, measurements, confidence, and daily movement can all indicate meaningful progress. Weight may change more slowly than it did in the past, but a slower approach can still produce lasting results.
At Jensen Fitness, we help women build practical exercise and nutrition routines that work with their changing bodies rather than punishing them for those changes. Perimenopause and menopause may require adjustments, but they do not prevent you from becoming stronger, improving your health, or feeling more confident.
The goal is not to train exactly as you did at 25. It is to create a plan that supports the body you have now and helps you continue progressing through every stage of life.
