The Science of Grip Strength (And Why It Matters More Than You Think)

The Health Test You Can Take Right Now (Without a Doctor)

One of the most surprising clues about how long you might live has nothing to do with your resting heart rate, your cholesterol, or how fast you can run a mile. It has to do with how hard you can squeeze.

Research has found that grip strength is associated with the risk of dying from any cause, including cardiovascular disease. In a landmark international study, people with weaker grips had a higher risk of death during the study period than people with stronger grips.

Here's what makes that interesting: Your grip is about much more than your hands. It's a window into your overall muscular strength and physical health. And changes in grip strength can sometimes reveal declining physical function before it becomes obvious in everyday life.

But there's an important distinction that often gets lost in the headlines. A strong grip doesn't guarantee a longer life, and squeezing a hand gripper won't automatically add years to it.

Instead, grip strength gives us a useful reason to pay attention to something we can influence: how strong we are overall.

Let's look at what the research actually says, why grip strength matters at every age, and six dumbbell exercises that can help you build a stronger grip as part of a well-rounded strength-training routine.

What Grip Strength Really Measures (It's Not Just Your Hands)

Grip strength measures how much force you can produce when squeezing an object. It's easy to understand, simple to test, and useful for tracking changes in physical strength.

That's why healthcare professionals often use a handheld device called a handgrip dynamometer. You squeeze the device as hard as you can, and it measures the force you produce.

The test takes seconds, costs relatively little, and provides an objective measurement. Researchers and clinicians use it to assess muscle function and help identify people who may be at risk of declining physical capability.

So why does a measurement taken at your hand tell us anything about the rest of your body?

Your grip depends on the muscles in your hand and forearm, but also on the nervous system's ability to activate those muscles. Grip strength is also associated with broader measures of muscle strength, physical function, and overall health.

That doesn't mean squeezing a device directly measures your heart health or the strength of your legs. It doesn't. Rather, grip strength is a convenient marker that can reflect aspects of your health beyond your hands.

There are also three types of grip worth understanding:

• Crush grip: Squeezing an object, such as closing your hand around a gripper.

• Support grip: Holding onto something without letting it slip, such as carrying heavy dumbbells.

• Pinch grip: Holding an object between your thumb and fingers, like picking up a weight plate.

These types overlap, but they aren't interchangeable. A complete approach to grip training develops your ability to squeeze, hold, and control objects while also building strength throughout your body.

The Longevity Research: What It Actually Found

The connection between grip strength and longevity isn't based on one small study. Researchers have examined it across large populations and different countries.

One of the most influential studies was published in The Lancet in 2015. Researchers in the Prospective Urban Rural Epidemiology (PURE) study enrolled 142,861 adults across 17 countries. The analysis included 139,691 participants with known vital status, with a median follow-up of four years.

Grip strength was measured using a handheld dynamometer. Researchers then examined how those measurements related to several health outcomes, including death from any cause and cardiovascular disease.

The results were striking.

Every 5-kilogram decrease in grip strength was associated with a 16% higher relative risk of death from any cause. The researchers also found that grip strength was a stronger predictor of all-cause and cardiovascular mortality than systolic blood pressure in their analysis.

You can read the original research here: Prognostic value of grip strength: findings from the PURE study.

A separate 2017 meta-analysis published in The Journal of Epidemiology examined 42 studies involving more than 3 million participants. It found that lower grip strength was associated with a higher risk of all-cause mortality and cardiovascular disease. For every 5-kilogram decrease in grip strength, the pooled analysis found a 16% higher relative risk of death from any cause.

These findings matter because the relationship appears across large, varied populations rather than in just one narrow group of people.

But let's be precise about what these numbers mean.

A 16% higher relative risk does not mean someone with a weaker grip has a 16-percentage-point higher chance of dying. It also doesn't mean that increasing your grip strength by 5 kilograms will reduce your risk of death by 16%.

These studies are observational. They identify associations, not proof that grip strength itself causes people to live longer. Researchers adjust for many factors, but they can't eliminate every possible explanation.

The evidence supports grip strength as a useful health marker. It doesn't establish grip strength as a standalone longevity treatment.

The Honest Truth Nobody Else Tells You

Here's where many articles about grip strength miss the point.

They explain that grip strength predicts longevity, list a few hand exercises, and leave you with the impression that squeezing a gripper is the secret to a longer life.

That's not what the research shows.

As Harvard Health explains, grip strength can provide clues about cardiovascular health and mortality risk. But evidence that directly training grip strength by itself improves longevity is lacking.

Think of grip strength as a mirror of your physical condition, not a magic lever.

People who are strong throughout their bodies often have stronger grips, too. And people experiencing declining muscle strength or physical function may show that decline in their grip.

That makes grip strength useful. It gives us a simple measurement that can tell us something about a much bigger picture.

The goal, then, shouldn't be to chase an impressive handshake or a record-setting squeeze. It should be to build and maintain the strength that helps you lift, carry, climb, exercise, and stay independent.

That's where full-body resistance training comes in.

Dumbbell exercises challenge your hands and forearms while also training your back, shoulders, arms, legs, and core. As you gradually increase the challenge, you can build strength that carries over to real-world activities.

And unlike treating grip strength as a party trick, this approach addresses the broader physical capacity that grip strength can reflect.

Why Grip Matters for Everyone (Not Just Older Adults)

Grip strength often gets discussed in the context of aging, but it matters well before retirement.

Maintaining independence as you age

Muscle strength naturally tends to decline with age, particularly when physical activity levels drop. Grip strength can help clinicians assess muscle function and may be one piece of the picture when evaluating age-related muscle loss.

Lower grip strength is also associated with poorer physical function and adverse health outcomes in older adults. However, it isn't a diagnosis on its own, and it doesn't tell you exactly what your risk of falling or fracturing a bone is.

Building strength before you notice a decline can help you maintain the physical capacity needed for everyday tasks, from carrying groceries to getting up from the floor.

For more on this topic, read our guide to how strength training changes after 40 and what to do.

Getting more out of your workouts

Your grip is the link between your hands and the weight you're lifting. If your grip gives out before your back or legs are adequately challenged, it can limit how much work you get out of certain exercises.

This can happen during rows, heavy carries, and other pulling movements. Improving your grip may help you hold onto the weight long enough to train the muscles you're targeting.

That doesn't mean grip is always the limiting factor. Technique, fatigue, and the strength of the target muscles all matter, too.

Improving sports and recreational performance

Grip strength and control play a role in activities such as tennis, golf, climbing, and racquet sports. The demands differ: climbers need sustained holding strength, while racquet-sport athletes need grip control during repeated swings.

Stronger forearms can help you handle these demands, but sport-specific technique and practice remain essential.

The takeaway is simple: grip strength isn't just something to worry about when you're older. It's a useful part of staying strong and capable throughout life.

The Best Dumbbell Exercises for Grip Development

You don't need a complicated routine to improve your grip. Start with a few exercises that challenge your ability to hold weight, control your wrists, and strengthen your forearms.

The key is to train grip as part of your overall strength program, not as a replacement for it.

1. Farmer's Carry and Farmer's Hold

Best for: Support grip and everyday carrying strength.

The farmer's carry is one of the simplest ways to challenge your grip while working your shoulders, core, and upper back.

1. Hold a dumbbell in each hand at your sides.

2. Stand tall, keep your shoulders controlled, and brace your core.

3. Walk slowly for 20–40 seconds without letting the weights slip.

4. Rest, then repeat for 2–3 sets.

No room to walk? Perform a farmer's hold instead. Stand still and hold the dumbbells for as long as you can maintain good posture and a secure grip.

Start with a manageable weight and gradually increase the load or holding time. Don't sacrifice control just to hold heavier dumbbells.

2. Dumbbell Wrist Curls

Best for: Forearm flexors.

Your forearm flexors help close your fingers and contribute to gripping strength.

1. Sit on a bench and rest your forearms on your thighs, palms facing up.

2. Hold light dumbbells with your wrists just beyond your knees.

3. Lower your wrists slowly, then curl them upward.

4. Perform 2–3 sets of 12–15 controlled reps.

Keep the movement at your wrists rather than lifting your entire forearm. Use a light weight until the movement feels comfortable.

3. Reverse Wrist Curls

Best for: Forearm extensors.

Your forearms also contain muscles that extend your wrists and help control movement. Training both sides can support balanced forearm development.

1. Rest your forearms on your thighs with your palms facing down.

2. Hold light dumbbells and let your wrists bend slightly downward.

3. Raise the backs of your hands toward the ceiling.

4. Lower slowly and repeat for 2–3 sets of 12–15 reps.

These muscles are often overlooked, so keep the load light and avoid forcing your wrists through a painful range of motion.

4. Hammer Curls

Best for: Forearm development and arm strength.

Hammer curls target the brachioradialis, a muscle that runs along the forearm and helps bend the elbow.

1. Stand with a dumbbell in each hand and your palms facing inward.

2. Keep your elbows close to your sides.

3. Curl the weights toward your shoulders without rotating your palms upward.

4. Lower with control for 2–3 sets of 8–12 reps.

Hammer curls don't isolate grip strength, but they build the muscles involved in forearm strength while fitting easily into an upper-body workout.

5. Heavy Dumbbell Holds

Best for: Challenging your ability to maintain a secure grip under load.

This is similar to the farmer's hold, but you can focus specifically on how long you can hold a challenging weight. The difference is that with Farmer's Holds, there is no set time for holding the weights, whereas with Dumbbell Holds there is. 

1. Select dumbbells you can lift safely without straining.

2. Stand tall with your arms at your sides.

3. Hold for 15–30 seconds while maintaining a firm grip and neutral wrists.

4. Rest and repeat for 2–3 sets.

Heavy holds primarily challenge the support grip. They don't isolate crush or pinch grip, which require different movements. If you want to train those specifically, hand grippers and plate pinches are more direct options.

6. Wrist Rotations Under Light Resistance

Best for: Wrist control and forearm coordination.

Your forearm muscles help rotate your palm up and down. Controlled rotation exercises can help you practice this movement.

1. Sit with your forearm supported on a bench or thigh.

2. Hold a very light dumbbell near one end, keeping the weight easy to control.

3. Slowly rotate your forearm so your palm turns up, then down.

4. Perform 8–12 controlled reps per side.

Don't force the rotation or use a heavy weight that pulls your wrist out of position. If you experience wrist or elbow pain, stop the movement.

How should you put it all together? Start with farmer's holds, hammer curls, and one wrist exercise. Add the other movements as your strength and comfort improve. For more full-body movements to build into your routine, check out The Best Dumbbell Workouts and Exercises.

How to Test Your Grip Strength at Home

Want to see where you stand? You have a few options, but remember that different tests measure different things.

Option 1: Use a handgrip dynamometer

An inexpensive dynamometer gives you a numerical grip-strength measurement. Follow the device's instructions, use the same hand position each time, and record your results for both hands.

For the most useful comparison, test under similar conditions each time. A dynamometer measurement is also the closest match to the grip test used in major research studies.

Option 2: Try a farmer's hold

Choose a pair of dumbbells you can lift safely. Stand tall and time how long you can hold them without losing your grip or posture.

Record the weight, duration, and whether you used one or both hands. Repeat the test with the same load later to see whether your performance changes.

Option 3: Try a dead hang

If you have a secure pull-up bar and can safely support your body weight, hold the bar with both hands and let your body hang under control.

Time your hold, stopping before your grip fails or your shoulders become uncomfortable. Skip this test if you have shoulder, hand, or other issues that make hanging unsafe.

A dead hang measures more than grip alone because your body weight, shoulder capacity, and technique all affect your performance.

What is a good grip strength for your age?

There isn't one universal number that defines a good grip. Results vary by age, sex, body size, testing equipment, and protocol.

A large 2025 review of international grip-strength data covering more than 2.4 million adults found that average grip strength generally peaks in early adulthood and declines later in life. You can explore the published research on adult grip-strength norms for age- and sex-specific reference values.

Use those reference values as context, not a personal diagnosis. If your grip seems unusually weak or has declined noticeably, discuss it with a healthcare professional rather than relying on a home test alone.

Most importantly, don't compare your farmer's-hold time directly with someone else's dynamometer reading. They're different measurements.

Common Grip-Training Mistakes

Only training grip directly. Grippers and wrist curls have their place, but they shouldn't replace rows, deadlifts, carries, presses, squats, and other full-body exercises. Compound lifts build strength across multiple muscle groups while challenging your ability to control a load.

Training grip every day. Your forearms and hands need recovery, just like the rest of your body. Start with one or two focused grip sessions per week and adjust based on soreness, performance, and your broader training schedule.

Going too heavy too soon. Heavy holds are useful only when you can maintain control. Start with a weight you can hold securely, then increase the load or duration gradually.

Ignoring discomfort. Wrist and elbow pain isn't something you should push through to improve your grip. Reduce the load, adjust your technique, or stop the exercise if discomfort persists.

Frequently Asked Questions

Does grip strength really predict how long you'll live?

Research has consistently found an association between lower grip strength and higher risk of death from any cause. However, grip strength is a marker of health, not a guarantee of longevity, and the evidence doesn't prove that increasing grip strength alone will extend your life.

What are the best exercises to improve grip strength?

Farmer's carries, farmer's holds, and heavy dumbbell holds are practical ways to challenge support grip. Wrist curls, reverse wrist curls, and hammer curls build supporting forearm muscles. Combine these with full-body resistance training for a more complete approach.

How often should you train grip strength?

Start with one or two focused sessions per week, alongside your regular strength workouts. Give your forearms and hands time to recover, and reduce the workload if you notice persistent soreness or declining performance.

What is a good grip strength for my age?

A good result depends on your age, sex, body size, and testing method. Use established age- and sex-specific reference values from a standardized dynamometer test for context, and focus on maintaining or improving your own performance over time.

Build Strength That Goes Beyond Your Grip

Grip strength is worth paying attention to, but it's only one piece of the puzzle. The real opportunity is to build the kind of full-body strength that helps you stay active, lift confidently, and handle everyday challenges as you age.

Start with compound dumbbell exercises, add a few targeted grip movements, and increase the challenge gradually as you get stronger. You don't need a room full of equipment to get started.

Explore PowerBlock adjustable dumbbells to find a setup that fits your training goals and space. For more on how handle size and material can affect your lifting experience, check out the PowerBlock Dumbbell Grip Guide.

Remember: A stronger grip is a useful goal. Building a stronger body is the bigger win.