For decades, weight has been at the center of public health discussions about longevity and disease prevention. Women over 40, in particular, are often bombarded with messages about weight loss as the key to better health. However, emerging research suggests that fitness, not body weight, may be the more critical factor in determining long-term health and mortality risk.
A new systematic review and meta-analysis published in the British Journal of Sports Medicine challenges the conventional focus on weight loss, highlighting the powerful role of cardiorespiratory fitness (CRF) in reducing the risk of cardiovascular disease (CVD) and all-cause mortality, regardless of body mass index (BMI).
Why Fitness Matters More Than Weight
The study analysed data from 398,716 participants across 20 studies, evaluating the combined impact of BMI and CRF on mortality risk. The findings were striking:
- Women and men who were classified as fit, regardless of their BMI (normal weight, overweight, or obese), did not have a significantly higher risk of cardiovascular or all-cause mortality compared to those who were normal weight and fit.
- Conversely, individuals who were unfit, irrespective of their BMI, had a two- to threefold higher risk of dying from CVD or any cause.
These results reinforce a growing body of evidence suggesting that fitness, rather than a singular focus on weight loss, should be a primary health goal.
The Problem With a Weight-Centric Approach
For many women, especially those navigating hormonal changes in midlife, weight loss can be frustratingly elusive. Traditional weight-loss methods often lead to weight regain within a few years, with studies indicating a nearly 100% recidivism rate over a decade.
Moreover, intentional weight loss does not consistently correlate with lower mortality rates in observational studies and randomized controlled trials. The reason? Weight loss alone does not necessarily improve underlying metabolic health, whereas fitness does.
Fitness as a Lifelong Health Strategy
The review found that even moderate levels of CRF could dramatically lower mortality risk, suggesting that a shift away from an obsession with weight loss toward a focus on improving fitness levels could be far more beneficial for long-term health.
Regular physical activity offers a range of benefits beyond weight management, including:
- Improved cardiovascular function: Exercise strengthens the heart, improves circulation, and lowers blood pressure.
- Better metabolic health: Even without weight loss, regular movement enhances insulin sensitivity and reduces the risk of Type 2 diabetes.
- Reduced inflammation: Exercise has been shown to lower systemic inflammation, which is a key driver of chronic disease.
- Stronger bones and muscles: Crucial for maintaining mobility and independence as we age.
- Mental health benefits: Exercise reduces stress, improves mood, and supports cognitive function.
What This Means for Women 40+
As midlife women, we are often led to believe that losing weight is the ultimate solution to feeling and looking better. But this study suggests that a more sustainable and impactful approach would be to focus on improving fitness levels rather than fixating on the number on the scale.
How to Prioritise Strong over Skinny
If fitness, rather than weight loss, is the key to longevity, what should that look like in practice? The good news is that significant health benefits can be achieved with moderate activity levels. Here’s how to make it work for you:
- Move More, Sit Less
- Aim for 150 minutes of moderate-intensity exercise per week (such as brisk walking, cycling, or swimming).
- Break up long periods of sitting with short bursts of activity.
- Incorporate Strength Training
- Two to three sessions per week of resistance training (bodyweight exercises, weight lifting, or Pilates) help maintain muscle mass, which is vital for metabolic health and longevity.
- Prioritise Enjoyment Over Intensity
- The best workout is the one you’ll actually do. Whether it’s dancing, yoga, or hiking, find activities you enjoy so they become lifelong habits.
- Shift Your Mindset
- Instead of exercising for weight loss, focus on how movement makes you feel—stronger, more energized, and mentally clearer.
- Ditch the All-or-Nothing Thinking
- Even small amounts of exercise are beneficial. A 10-minute brisk walk is better than nothing and contributes to overall fitness.
A New Perspective on Health
The findings from this review challenge outdated public health messages that center on BMI as the primary indicator of health. Instead, they suggest a more empowering and achievable approach: prioritizing fitness over weight loss.
For women over 40, this is welcome news. It means that health and longevity are not dictated by body size but by how well we care for our bodies through movement and strength-building habits. Instead of punishing ourselves for not fitting into a certain weight category, we can focus on what truly matters—feeling strong, vital, and capable at every stage of life.
Mary Doube, Co founder of Menopause App Aviiana has developed a deep understanding of strong not skinny mantra through personal experience. Mary’s view is articulated in this statement:
“Strength training isn’t just exercise. It’s empowerment. It’s saying to yourself, I’m not done yet. If you’re ready to feel capable, resilient, and strong, start today. Small steps lead to massive changes, and you’re worth every single one.”
Mary Doube’s 3 Steps to kickstart your Strength Training Journey
- Start Small, but Start Now: You don’t need heavy barbells on day one. Begin with bodyweight exercises like air squats, push-ups (or knee push-ups), and planks. Focus on form and consistency. Start with 5 sets of 8-10 repetitions.
- Use Dumbbells to Progress: Gradually introduce light weights and start to up the weight to stimulate muscle growth. Your muscles then require more stimulus to grow, which means you need to lift heavier weights in a controlled manner. This process is called PROGRESSIVE OVERLOAD. It challenges your muscles, encouraging them to adapt and grow. Now try dumbbell squats (holding a dumbbell under your chin), deadlifts, or shoulder presses. Aim for 2-3 sets of 8-12 reps.
- Train Like a Beginner, Eat Like an Athlete: Strength training thrives on good nutrition. Focus on protein-rich foods to fuel muscle repair and growth. Eggs, chicken, tofu, beans—make them your best friends.
For the full Aviiana beginners program click here – Women’s Wellness Program | Menopause Support Group & Fitness Program – Aviiana)
