You’re not lazy, your body just can’t recover the same way anymore

For decades, women have followed health and fitness rules designed around male bodies—rules that quietly stop working as our physiology changes. In this column Fitness, Rewritten, transformation coach Rohini Rao decodes fitness, hormones and recovery for women in their 20s, 30s, 40s and beyond. Drawing from over 15 years of training women across life stages, as well as her own experience of perimenopause and menopause, she unpacks what’s actually happening in our bodies, translating the science behind hormones, recovery and ageing into practical, sustainable strategies for women.

When an athlete tears a ligament, we say they’re in rehab. When a car runs out of fuel, we refuel it. Yet when a woman can’t maintain the pace she once could—whether that’s a long run, a HIIT class, or a 5am training session—the first diagnosis is “I’ve become lazy”.

We’ve been taught that fitness is linear: the more effort you put in, the fitter you become. In our 20s, recovery feels automatic. You can train hard, drink wine, sleep six hours and still function.

But that bounce-back ability isn’t a personality trait, it’s biology.

As we age, our bodies become more selective about where they spend energy. Recovery no longer happens overnight. That shift is often subtle at first—slightly heavier legs, lighter sleep, soreness that lingers—but it signals that the system is adapting.

Comparing ourselves to younger versions of our bodies, or to male training models built around more stable hormonal cycles, only amplifies the shame.

When we overcorrect

This is where I see women get into trouble.

They notice a softening around the waist, feel winded on the stairs, or miss a personal best—and panic. Carbs are cut. Cardio increases. Another HIIT class is added.

But if recovery capacity is already shifting, more intensity doesn’t create progress, it creates strain.

In your 20s, your body may tolerate high-volume, high-intensity training several days a week. From your mid-30s onwards, particularly as you approach perimenopause, recovery takes longer. When we ignore that and keep stacking stress on top of stress, fatigue accumulates faster than results.

It’s not a lack of discipline. It’s a mismatch between stimulus and return.

Why women’s fitness recovery changes with age and hormones

This shift is hormonal. Oestrogen supports muscle repair, joint lubrication and anti-inflammatory processes. As levels gradually decline—sometimes beginning in the late 30s—recovery slows. What once took 24 hours may now take 48 or more.

Progesterone, which has a calming effect on the nervous system, also fluctuates. When it drops, sleep can feel lighter, and you may feel “tired but wired”. Add intense training to that mix, and stress compounds rather than resolves.

Testosterone, which supports lean muscle mass and strength, declines gradually in women over time. That doesn’t mean muscle is impossible to build, but it does mean recovery, protein intake and intelligent programming become more important than simply adding volume.

Women operate on a monthly cycle that changes again through perimenopause and menopause. Men, in contrast, run on a largely 24-hour hormonal rhythm. This is why training systems originally designed for men assume predictable repeatability, while women’s bodies operate on adaptation and variation.

When women train as though their physiology is identical to men, fatigue and plateaus are often the first signs that something needs adjusting.

How to tell when your body needs recalibration

• Soreness lingers beyond what used to be a normal recovery window
• You’re wired and tired, exhausted but unable to fall asleep
• You wake puffy or stiff, especially around joints
• Progress stalls, despite training consistently or harder

These aren’t signs of weakness. They’re feedback.

Adapting your training for sustainable strength and energy

This isn’t about stopping exercise. It’s about shifting emphasis.

Many women benefit from prioritising resistance training over high-frequency cardio. Short, well-programmed strength sessions stimulate muscle and bone density with less cumulative stress than repeated high-intensity cardio.

Protein intake becomes more important—particularly around training—to support muscle repair. Training entirely fasted, especially with intense sessions, may increase stress levels in some women and blunt recovery.

And when your body feels heavy and inflamed rather than energised, a gentler session like a mobility workout, yoga class or even a long walk can be more productive than forcing another maximal effort workout.

The change isn’t triggered by a birthday. It’s triggered by signals. When effort stops yielding proportional returns, the system likely needs adjusting.

Learn to recalibrate, not break

Many of us were conditioned to believe that resilience means pushing through until something gives. When our bodies ask for rest, we interpret it as weakness rather than information. But what changes in our 30s, 40s and beyond isn’t our capacity for strength—it’s the way that strength needs to be built and maintained.

Adaptation is not failure. It’s physiology.

When recovery slows, the intelligent response is not to add more intensity but to adjust the stimulus. That might mean fewer high-impact sessions, more structured strength work, better fuelling, or simply acknowledging that rest is now part of the training equation rather than an indulgence.

Your body is not regressing. It is recalibrating. The goal is no longer to replicate what worked at 25, but to train in a way that supports the body you have now—so that strength, mobility and energy are sustainable for decades, not just seasons.

Rohini Rao is a Singapore-based personal trainer, certified nutritionist and yoga teacher with over 15 years of experience working with women across life stages. She specialises in helping women navigate hormonal changes while building sustainable strength, resilience and long-term health.