For years, many women have thought about exercise primarily in terms of weight loss and have focused on things like burning calories, staying thin, or “toning up.” As a fitness and nutrition coach, I want women to start thinking about muscle very differently, especially after the age of 50.

What is so important for women to understand is that muscle is a powerful, metabolically active tissue that plays an important role in blood sugar regulation, bone health, balance, mobility, and even cognitive health. It also provides the strength and physical reserve we need to remain active and independent as we age.

And we have tremendous influence over how much strength and muscle we maintain.

Hear me loud and clear—it’s never too late to start building it!

Muscle Loss Starts Earlier Than You Think

There’s a term I want every woman over 50 to know: sarcopenia. It refers to the progressive loss of muscle mass, strength, and function associated with aging. This process of muscle loss starts much earlier than most people realize, often beginning in our 30s and becoming more significant as we get older.

We also don’t just lose muscle size. Strength and power can decline even faster, which can eventually affect everything from our metabolism to our ability to get up off the floor.

Remember, muscle is metabolically active tissue. It helps our bodies use glucose and maintain healthy insulin sensitivity, while also providing an important physical reserve during illness, injury, or periods of inactivity. As muscle and strength decline, the risk of frailty and loss of independence increases.

Sarcopenia is also associated with a greater risk of disability and premature death, which is why preserving muscle shouldn’t be treated as an optional fitness goal. It is an important part of protecting our long-term health and should be seen as a priority at any age.

This is why I encourage women after 50 to stop focusing solely on the number on the scale. Maintaining, and building, lean muscle tissue needs to become part of the goal.

Muscle Keeps You Independent

When I talk about building strength, I’m not just talking about how much weight you can lift in the gym.I’m talking about having what I call ‘quality-of-life-preserving strength’—the strength to climb a flight of stairs, carry your groceries, work in the garden, travel, and keep up with your grandchildren.

We also need to think about muscle power, or how quickly your muscles can produce force. Power tends to decline with age and becomes especially important when you lose your balance and need to react quickly to prevent a fall.

Falls are a major threat to health and independence as we get older, which makes maintaining strength, power, balance, and stability increasingly important.

Ultimately, this is what we’re training for. We want bodies that allow us to keep doing the things we love, and the everyday things we need to do, for as long as possible.

Strong Muscles Help Protect Strong Bones

For women, the muscle conversation after 50 must include our bones. As estrogen declines during and after menopause, bone loss can accelerate, increasing the risk of osteoporosis and fractures as we age.

Muscle and bone work together. When we perform resistance exercises, our muscles pull against our bones, creating mechanical stress that helps stimulate the processes involved in maintaining bone strength. At the same time, stronger muscles help support better balance, stability, and physical function, which can help reduce our risk of falling in the first place.

Think of it as two layers of protection: build and maintain stronger bones while also building a stronger body around them.

This is why I don’t think we can have a meaningful conversation about protecting women’s bone health after menopause without also talking about maintaining muscle and strength.

The Muscle-Brain Connection

Here’s another reason to prioritize muscle that may surprise you: your muscle health may also be connected to how well your brain ages.

One fascinating study followed 324 female twins who were, on average, about 55 years old when researchers measured their leg power. Ten years later, greater leg power at the beginning of the study was associated with healthier cognitive aging. In a subset of identical twins who later underwent brain imaging, greater leg power was also associated with greater gray-matter volume.

This doesn’t prove that stronger legs prevent cognitive decline, but it adds to a growing body of research exploring the relationship between physical fitness, muscle function, and brain health.

We’re also learning that skeletal muscle communicates with other parts of the body through signaling molecules released during exercise. In other words, strong legs may tell us something important about much more than our ability to walk up a flight of stairs.

It’s Never Too Late to Build Muscle

If there is one message I want women to take away, it is this:  You are not too old, and it is not too late to get stronger.

In fact, helping people understand the power of muscle, and giving their bodies the nutrition needed to build and preserve it, has become one of my greatest missions as a coach.

Start with resistance training that works the major muscle groups and gradually increase the challenge as you get stronger. Pair that training with enough high-quality protein, ideally spread throughout the day. This becomes increasingly important as we age because our muscles can become less responsive to both exercise and protein, a phenomenon known as anabolic resistance. And don’t underestimate recovery. Good sleep and adequate rest are part of building muscle, too.

You don’t have to do everything perfectly. You just have to start and stay consistent.

After 50, building muscle is all about building the physical reserve you want to carry into your future!

If you need help getting started, or have any questions, please reach out to me directly at mgriffin@amac.us.